Profound Events In Modern Science

Science has had many a profound impact on our lives since the turn of the 20^th Century and not always a positive one – depending on who you talk to. There have been literally hundreds of significant scientific concepts, events, including inventions that have had a profound impact on our individual selves and our society. Any list doesn’t bring justice, and there will be howls of protest for omissions, but still, here’s a baker’s dozen that I feel are pretty profound.

Here are some reasonably profound events in science from 1900 to date that I feel are important in the broader historical, social and cultural context.

1) Sputnik (1957): Unless you lived through it, it’s hard to imagine the impact that the launch of the Soviet artificial satellite Sputnik had all of a sudden on the public awareness of outer space as an actual place where things could happen. The shock-horror to the American psyche was profound, resulting in a massive boost to American science and technological education, acerbating the Cold War, and of course resulting in the Space Race which culminated with the first landing on the Moon (1969). Without Sputnik, there still might not have been any human involvement in space and space exploration in general, and where would we be without artificial satellites in orbit today.

2) Humans in Orbit (1961 to date): It may be ho-hum now, but back in the era of Project Mercury people were glued to their TV screens for the coverage of ‘man into space’. Ditto of course the first voyage to the Moon (Apollo 8) and the first landing on the Moon (Apollo 11). When the two Space Shuttle disasters happened, both re-awakened interest in no uncertain terms. Equally, the Russians were rapped in the many early successes of their space program while America suffered early humiliation after humiliation. But in an era of the Vietnam conflict, civil rights riots in the streets, the Cold War, and of course terrorism, manned space flight gave people something positive to cheer about. Further, there have been massive technological spin-offs as well that have filtered down to the general public. 

3) Modern Communications (1900 to date): It’s hard to believe that not all that long ago, a mere six or seven generations back, it took months to correspond between say Europe and America, or across America, or from America to Australia. However did those poor tweens, teens and young adults cope without instant communication feedback via their Facebook, Twitter or emails way back in those dark ages (how sad: sob; sob; sob). But then along comes wired technologies like the telegraph and telephone cabling and wireless technologies like ham radio and telecommunication satellites, the airplane sped things up too and then finally comes along the Internet and everything that’s i-this-gadget or i-that-doohickie, or i-the-next-damned-gizmo that’s under the proverbial sun (that you have to upgrade every six months). Whether ultimately this entire instant “I just gotta be in touch with everybody everywhere 24/7” will prove its worth or not remains to be seen. Back six or seven generations ago, if you had something to say and it took months to reach the person intended, it probably was important. Can one conclude the same today?  Recall how the automobile revolutionized everything and not necessarily for the better.  

4) Quantum Physics (1920’s): Though the first inklings of what would become quantum mechanics surfaced at the very turn of the century, the subject bloomed into a scientific revolution in the 1920’s. It wasn’t very long before applications were found, and today quantum physics is ultimately responsible for contributions to over one-third of the global economy in various gizmos and gadgets and their applications, many of which are in the possession of you readers.

5) First Nuclear Chain Reaction (1942) & Trinity A-Bomb Test (1945): Collectively these two experimental events gave rise to all of the nuclear issues part and parcel of our world today. That first chain reaction demonstrated that nuclear fission was more than just a theoretical idea and that controlled fission would lead to a nearly unlimited energy supply; uncontrolled fission, as demonstrated at Trinity, goes ka-boom, as in the A-Bomb. When controlled, radioactivity has many applications today, nuclear power (which doesn’t give off greenhouse gas emissions but has other issues) being of course one; nuclear medicine another; and radioactive traces are employed in all sorts of environmental work. Nuclear weapons, nuclear arms control, nuclear terrorism, radioactive waste, and related issues are of course on the opposite side of the nuclear coin.

6) Radar (1940’s): RAdio Detection And Ranging (RADAR) was developed in secret just before and during World War Two. Quite apart from all those obvious military applications, radar is central to modern airline operations and safe flying; the same applies to maritime safety; it’s a common tool for police in keeping those with a tendency to put the pedal to the metal under control; its use is obvious in weather forecasting and warning systems; radar helps keep track of all those bits and pieces we’ve put into orbit, and it has applications in geology (ground penetrating radar) to map subsurface terrain, even in astronomy bouncing radio and microwaves off the surface of nearly moons and planets be it from the ground or from space probes. Unless you’ve been caught speeding, you’re probably quite appreciative of all that radar does for you.   

7) First SETI Experiment (Project Ozma – 1960): Let’s for once try to answer that age old question “are we alone in the cosmos”. Make it so, and so it came to pass where experimental time and money was put where only just before the theoretical mouth was. As we are all too aware, that first experiment, conducted by Dr. Frank Drake, failed to detect ET. In fact every SETI (Search for ExtraTerrestrial Intelligence) experimental effort to date has failed, but there has to be a first time for everything, and Project Ozma was the first SETI effort, and the significance lies in the fact that for the first time ever, and it’s our generation that’s making it so, exobiology (or astrobiology) has become an experimental instead of just a theoretical science, albeit on still in search of its subject. 

8) Flying Saucers (1947 to date): More books, articles, websites, and documentaries have been done about the subject of UFOs than any other aspect of science. Yes science, since there is a case to be answered even if it is a social one, but even the possible connection with extraterrestrial life makes the study a profound and of course interesting one. Alas, if 65 is considered normal retirement then UFOs should already be pensioned off. Despite that, they do keep on keeping on despite all the best debunking efforts by those self-appointed to act as ‘professional’ sceptics.

9) Chariots of the Gods (1950’s to date): It has been pointed out that it would be extraordinary in terms of probability that ET via those pesky UFOs would pick the last generation or two to show up. This is true. However, negating that little objection, there’s the concept of the ‘ancient astronaut’ – ET has been around for over 100 generations (minimum) with suggestive evidence (not proof) cobbled together from anthropology, archaeology, literature, religions and mythology. While author Erich Von Daniken has been the most visible of the ‘ancient astronaut’ proponents, he wasn’t the first to advocate the idea that ET played a role in the development of mankind. The central issue of profoundness is that any study that suggests that intelligent extraterrestrial life exists, and even more to the point, has had a cultural impact on human society, can’t be easily shrugged off.   

10) King Tutankhamen’s Tomb (1922): Ever since Napoleon’s invasion of Egypt, Egyptology has been big business for publishers, private collectors, museums, Egyptian tourism, etc. However, Egyptology really took off in the mainstream consciousness following the discovery of the Pharaoh known as Tutankhamen, or the Boy King’s tomb, by archaeologist and Egyptologist Howard Carter. The impact on archaeology in general and Egyptology in particular has been and remains profound. There’s hardly anyone who hasn’t heard about Pharaoh Tutankhamen, and worldwide exhibition tours of artefacts found in his tomb attract huge crowds. 

11) Discovery of Penicillin (1928): We all know about that wonder drug penicillin, discovered rather accidentally by Alexander Fleming, which has been responsible for saving more lives than you can shake a stick at. That gave rise to a whole potpourri of antibiotics, but it also gave rise to the Pandora’s Box of antibiotic resistance and the rise of the super-bug, an issue that is both current, ongoing, and of concern to anyone and everyone ever likely be suffer from an infection. 

12) The First Heart Transplant (1967): Anyone who was around at the time can remember the massive amount of press coverage that very first human heart transplant that took place, in Cape Town, South Africa, under the direction of Christiaan Barnard. Back then, this was Big News. Thousands of human heart transplants are now preformed annually and of course it is no longer Big News – unless you are one of those on the receiving end.   

13) Genetic Code (the Discovery of DNA in 1953) & Associated Human Genome Project (2000 to date): Hands up anyone who hasn’t heard about Watson and Crick and the discovery of the substance and structure of DNA in 1953. No hands up? Well that’s not surprising as it is one of the most famous of the famous of scientific achievements in relatively modern times. Ultimately that discovery (along with massive amounts of additional genetically relevant biochemistry since then) has morphed into the Human Genome Project, the importance of which has yet to reach full potential. But full understanding of our genetic makeup is an important tool in coming to terms with all those hundreds of genetic afflictions we can suffer from, and curing (or preventing) same. 

And there’s a dozen dozens more, like the Discovery of X-Rays (1895) so that date is eliminated from ‘modern’ science, though where would modern medicine and dentistry be without X-Rays as well as applications in materials testing, etc. Most of the applications took place in the 20^th Century. Anyway, as I said, there are many more examples that could, probably should be included, but space is limited.

Honourable Mention: Where’s Einstein’s Special and General Relativity? Well, Einstein’s Relativity only rates an honourable mention since it has relatively little impact or application, apart from GPS, in modern society. When (and if) we start to boldly go, then horses will change their colour.

UFOs and Our WW2 Atomic Bombs

A rarely seen, ‘long lost’ Walt Disney UFO documentary titled “Alien Encounters from New Tomorrowland” hosted by Robert Urich, is a program that’s pro-UFO as in UFOs being the product of extraterrestrial intelligences. Unfortunately, though while I have relatively little bone to pick with the general content, it did repeat what IMHO is a fundamental error which is the relationship between our use of nuclear weapons in WW2 and the arrival of the aliens (if aliens there be) in 1947. 

One common mythology surrounding the rational for UFOs arriving at Planet Earth in 1947 has to do with human civilization advertising itself to the cosmos as the nuclear new boy on the block in 1945. Planet Earth becoming a nuclear power would obviously be upsetting to extraterrestrials, so the mythology goes, akin to how countries like the United States, Great Britain, Australia, etc. get nervous about North Korea or Iran going nuclear. However, unless aliens were already in spitting distance of Earth*, that scenario (the link between 1945 atomic blasts and the 1947 arrival of extraterrestrial UFOs) is blatant nonsense for several reasons - distance and glare.

Now I like the UFO ETH (ExtraTerrestrial Hypothesis) as much as the next person, but our WW2 atomic bomb explosions are not why they’re here, initially or otherwise.

Let’s start with distance. I assume any extraterrestrial intelligences will be housed on a planet around a star. The nearest stellar system to Earth is the Centauri System, Alpha Centauri, etc. Unfortunately, the Centauri System is over four light years away, and that’s your best case distance scenario. Light, including the flash from an atomic bomb, travels at one light year per year. So, a 1945 atomic blast wouldn’t register at the Centauri System until latter 1949, or several years after the initial 1947 origin to the modern UFO phenomena.

But that’s not the end of the distance issue. Even if our hypothetical Centauri aliens saw those WW2 atomic blasts from a planet around Alpha Centauri in 1949 our time (those four years it took that atomic light to reach the Centauri system starting out in our 1945), they, the aliens, still have to travel from their Centauri system to our solar system and Planet Earth. They can’t do that in less than four years. We couldn’t do it (Earth to Centauri) with our current rocket technology in under 10,000 years! So, even assuming our alien friends could rocket at the speed of light, and that’s a hell of a big assumption, they ain’t gonna get here until 1953 minimum in response to our 1945 atomic bomb explosions, even if they leave their Centauri system post haste upon viewing our use of nuclear technology. That’s hardly the 1947 when the modern UFO era started.

Secondly, there’s glare. Viewed from even the nearest Centauri System, the separation of Planet Earth from the Sun is so small that Earth would be 100% lost in the glare of the Sun, just like you probably couldn’t see a BB just immediately off fractionally to the side of a powerful spotlight. Now the light from an atomic bomb is miniscule relative to the faint sunlight reflected off by Planet Earth itself, our planet itself lost in the far, far, far brighter light emitted by the Sun itself. Translated, there is just no way to see the flash of a WW2 atomic explosion from over four light years away, and that’s assuming the alien home planet is even that close. So, something’s screwy somewhere and that something is the assumed relationship twixt the arrival of the ‘flying saucers’ in 1947 and the start of our nuclear era in 1945.

Distance and glare collectively rule out aliens arriving on Earth in 1947 due to having witnessed a 1945 atomic bomb explosion, unless of course they were already within spitting distance.

So there is however that pesky Star Trek scenario (see below) that aliens just happened by sheer coincidence to be nearby when we advertised our destructive atomic bomb technologies big time. However, IMHO, the odds that aliens would just happen to be in the neighbourhood when our first atomic bombs went off is as likely as you being at ground zero when something extraordinary dramatic event happened. It might happen once in your lifetime – say you were in the bank when the bank robbers rushed it. But if your lifespan is paralleled with the duration Planet Earth has been around to date, what odds that the bank robbery (the parallel to the WW2 atomic blasts) and your presence in the bank (the parallel to aliens being in the neighbourhood) would coincide? Aliens passing by could be at any old time in Earth’s general history, just like your banking visits could be any old time in your general history. But the atomic blasts, and the bank robbery, were at one very specific time. Yes, the two timelines, the general and the specific, might intersect just so, but you’d probably be safer betting your money on the lottery than betting on that likelihood.

You might argue that perhaps aliens a long time ago set up nearby automatic on-station monitors to monitor for that very event – Earth’s transition to a nuclear planet. However, it would still take four years for that automated message to reach the hypothetical aliens around the Centauri system, and of course the time needed for the trip from Centauri back to Earth.

Myth busted.

*Akin to how the Vulcans happened to be passing by in near Earth space just as humanity set off its first warp drive signature attracting their attention as related in the film “Star Trek [TNG]: First Contact”.

UFOs & the Anti-ETH: Summation Arguments: Part Two

That the scientific communities and scientists in general (there are exceptions) dismiss the UFO ETH (extraterrestrial hypothesis) as pseudoscience and total bunk is understandable, but illogical. The scientists’ anti UFO ETH arguments don’t stand up to logical scrutiny. Here’s some more of their specific objections, and why they are in turn, objectionable. To adequately come to terms with the UFO ETH one needs to have a ‘deep time’ perspective; not just one of here and now or last week, month, year, decade or even centuries ago.

Continued from yesterday’s blog…

It doesn’t take much imagination – and many have imagined it – that ET has been in Earth’s hair on a nearly ongoing basis. The key point is once that initial chance discovery has happened, and that could have been billions of years ago, we’re charted, noted and logged biological real estate. We’re now a colored pin on the galactic map, say green for simple biosphere; yellow for complex life, orange for intelligence and red for here be a civilization. Within 100,000 years of that first contact (even if it were ET greeting our microbial ancestors), light speed radio communications would have notified all potentially receptive (and future receptive) alien civilizations that here was one of those rare abodes, a planet with a biosphere, and thus one worth ongoing routine (not random) investigations – for scientific reasons if nothing else.

The terrestrial parallels are obvious. Once we discovered Antarctica it quickly became common knowledge. We went back, again, and again and again, finally setting up near permanent quarters despite the obvious costs and hardships, all in the name of science. We’ll go back to the Moon too one day – maybe not anytime real soon, but eventually. Your great grandkids will see lunar settlements or outposts like we today see in Antarctica. ET and Earth may have had the same ongoing relationship. We might find we have ET for company on the Moon like we’ve had ET for company on Earth.

Now fast-forward and recall from our mythologies around the world – all races, all cultures, all geographical settlements – the tales of the sky ‘gods’ and beings associated with various constellations and stellar addresses.  Those same ‘gods’, who often get around in aerial ‘chariots’, gave the gifts of knowledge and culture and rudimentary technologies to primitive (hunter-gather) mankind. They stick around to monitor their experiment.

Now fast-forward to 1947 through to the present. The ‘gods’ have become ET, and they are going to keep close tabs on us, since they know that one day, even if thousands of years down the track, we’ll boldly go like they have boldly gone. We have our intelligence gathering agencies; ET has theirs as well.

For egocentric humanity, it’s clear that UFOs, if alien owned and operated, can only be here, on-site, in response to the modern human presence. That’s actually advocated by many pro UFO ETH buffs that how can it be a coincidence that aliens have arrived just at the same time we started playing around with dangerous toys – nuclear weapons; going into space; and reeking environmental havoc upon ourselves. Skeptics counter that for humans to be known by those out there, they can only know of us via our electromagnetic (EM) signals, which propagate outwards out there at light speed. Thus, our EM signals (nuclear blasts, radio/TV broadcasts, radar emissions, etc.) haven’t had much time to get very far out there, because prior to say 1900 Earth was pretty quiet in giving off human technological EM noise. Even our atmospheric pollution, potentially detectable from way out there via spectroscopic analysis, wasn’t really at highly abnormal levels prior to 1900. It’s only in the 20^th Century did it really kick into high gear.

So, if you take 1947 as the start year of the modern UFO era – their arrival date – and assuming they left home as soon as they detected our EM signal then their home has go to be so close by to Earth as to be statistically unlikely in the extreme. Since ET’s home is certainly not within our solar system, then by elimination, that leaves nearby stars. But only subluminal interstellar travel is possible, and even interstellar velocities of say 10% light speed are pushing the envelop. Our closest stellar companions are over four light years away, so it would take ET over forty years to reach us from the closest stellar abode. Add to that the four light years it took our EM signal to reach them in the first place, well that’s about 44 years all up. Subtract that from 1947 – well, 1903 isn’t known for our high intensity radio broadcasts, and radar, TV and nuclear lights are still future technology. Therefore, ET didn’t arrive in 1947 due to any human activity, and since obviously only human activity would attract ET to travel here in the first place – therefore UFOs can not be anything alien! 

The basic assumption that UFOs are here because humans are here is so anthropomorphic (human centered) as to be laughable. Firstly, even if the aliens arrived out of concern to post-1900’s human activities, that doesn’t mean they weren’t already here, if not on-site, in the immediate solar system area, like having a lunar base, or even an orbiting space colony ship as base of operations. One doesn’t have to postulate them being a minimum of over four light years away. Secondly, let’s forget the human element – as per the above argument, Planet Earth has been noted and logged in a galactic database for a minimum of millions of years, more likely as not an order of magnitude greater – billions of years. It’s an egocentric inspired, but just coincidence, that alien UFOs are around when humans dominate Earth’s environment.

A near universal objection to the UFO ETH is that there’s little or no credible evidence, especially physical evidence that any UFO event can be interpreted as an alien spaceship doing its alien flying thing. 

The fact that there exists such a thing as the UFO ETH must suggest that there is some suggestive evidence in support. The UFO ETH only exists, post early 1950’s, is because for the first three to four years of the then ‘flying disc’ or ‘flying saucer’ phenomena, late 1940’s, ‘saucers’ or ‘discs’ were assumed to be terrestrial in origin – secret Soviet devices (to the Americans); secret American devices (to the Russians). When those ideas became untenable, the obvious conclusions were that it was all in the mind; misidentifications, hoaxes, hallucinations etc. But that became as equally untenable as solid case after solid case came in and proved to be unexplainable by any and all terrestrial possibilities. By elimination – well according to Sherlock Holmes, when you’ve eliminated the impossible, whatever remains, however improbable, must be the truth – one was forced to at least consider the ETH a plausible alternative. But the illogic of the scientific mind was made crystal clear in the ultimate debunking of the UFO ETH, the University of Colorado Scientific Study into UFOs [the Edward Condon study] which concluded it was all a lot of rubbish – except for the fact that that very study, that very report, couldn’t explain away, with any terrestrial phenomena known, over 30% of the UFO cases it studied. It’s like a jury stating 1/3^rd not guilty; 2/3rds guilty – well the majority ayes have it – let’s carry out the execution. So, what part of the word ‘evidence’ don’t you understand?

Okay, so multi-tens of thousands of eyewitness accounts count for nothing, especially when many of those sightings were by trained observers, and multi-witness cases at that. On that UFO issue, many scientists while happy to accept the accuracy of eyewitness testimony when it provides data that turns a UFO event into an IFO, for some strange reason reject eyewitness testimony when it reinforces the unidentified or unknown status of the UFO event. Go figure!

All of which suggests to me that when it comes to the scientific community and evidence, there is often a double standard employed. For example, even as recently as 2009, a public opinion poll found that a significant (albeit minority) percentage of scientists had a belief in a God that was up close and personal in their lives. There’s not the slightest bit of evidence, physical or otherwise, that God exists.  There’s not one shred of physical evidence for string theory, yet its an accepted area of funded academic research and has been for decades. But that’s getting away from the topic. Anyway, back to the evidence for the UFO ETH.

To be continued…

UFOs & the Anti-ETH: Summation Arguments: Part One

That the scientific communities and scientists in general (there are exceptions) dismiss the UFO ETH (extraterrestrial hypothesis) as pseudoscience and total bunk is understandable, but illogical. The scientists’ anti UFO ETH arguments don’t stand up to logical scrutiny. Here’s some more of their specific objections, and why they are in turn, objectionable. To adequately come to terms with the UFO ETH one needs to have a ‘deep time’ perspective; not just one of here and now or last week, month, year, decade or even centuries ago.

Whether you’re a UFO ETH (extraterrestrial hypothesis) supporter, a UFO ETH debunker, or you don’t give a damn either way about the UFO ETH at all (so then why are you reading this?), you’d be aware that overall the professional scientific community, including for some odd reason SETI (Search for ExtraTerrestrial Intelligence) scientists – the very clan who profess an intense interest in ETI – pooh-pooh the very notion of the UFO ETH. Here’s some more of their specific objections, and why they are in turn, objectionable.

Some scientists will argue that we are the proverbial IT – there are no other advanced extraterrestrial civilizations, therefore UFOs can not have anything to with extraterrestrial intelligence.

However, with 13.7 billion years to play with since the origin of our Universe (the Big Bang event); with billions of stars in our own galaxy alone; with billions of galaxies scattered throughout the cosmos each with billions of stars therein, with extra-solar planets being discovered around many of those stars in our own galaxy (and by implication other galaxies as well); with the chemical elements required for life commonplace throughout the Universe; with the principles of Darwinian evolution given as universal, what odds that we are really the proverbial IT?

Of course when it comes down to the UFO ETH it’s only our galaxy we need concern ourselves with. Even I acknowledge that though extraterrestrial civilizations exist in other galaxies, travel times between galaxies quickly exceed logical transit times available. Interstellar travel however is quite another matter. Still, our own galaxy gives us some ten billion years to play around with; billions of stars and no doubt planets, those abundant chemical elements, and Darwinian principles. Again, it would be a very brave soul to suggest again those sorts of statistics that we are, even in our own galaxy, the proverbial IT; not just the new kid on the block, but the first and only kid on the block.

Not even a UFO ETH skeptic SETI (Search for ExtraTerrestrial Intelligence) scientist of my acquaintance would argue we’re the proverbial IT – it would make a mockery of his own chosen career path.

Some scientists suggest that while it’s highly probable that extraterrestrial life exists; extraterrestrial intelligence doesn’t. No alien intelligence means no-go to the UFO ETH.

Again, not even respectable SETI scientists would propose this an objection to the UFO ETH since that would undercut their own work. Clearly the evolution of intelligence, albeit being just one of many competing traits for biological survival of the fittest, does have ultimate survival value. The Earth provides a practical example of that as many species can be attributed a reasonable degree of an ability to figure things out, and that it is possible to evolve extremely high levels of intelligence is witnessed by ourselves. If Mother Nature can evolve one biological highly intelligent species, she can do it again, and again, and again on other worlds. 

Lots of arguments against the UFO ETH centre around the proposition that they (the aliens) can’t get from there (wherever there is) to here – interstellar space is the ultimate no-fly quarantine zone and since superluminal velocities (i.e. – Star Trek’s warp drive comes to mind here) are a violation of Einstein’s special theory of relativity (though there’s nothing theoretical about that inconvenience anymore) that takes care of that. ET exists but can’t get here; therefore UFOs can’t be the products of ET.

Now I can not believe this old and totally outdated chestnut is still bandied about. The idiotic assumption here is, in a very anthropological way, is that ET must have a lifespan equal to that of humans. Humans cannot travel to the stars because we can’t travel fast enough in our short life-spans to make the journey from start to finish, and I assume here that if you start the journey you want to be around to finish the journey. Now there is no law in biological science that says an intelligent flesh-and-blood entity must kick-the-bucket after roughly three score and ten years. If you recall from mythology, the cosmic and sky ‘gods’ were (at least from a human perspective) as close to immortal as makes no odds. Quasi-immortality makes interstellar travel quite feasible. Of course any alien intelligence that can visit us will have technologies far beyond our own. Genetic or other forms of bioengineering could artificially extend life-spans by many orders of magnitude. Perhaps flesh-and-blood has morphed into silicon and steel. There’s the standard sci-fi scenarios of the multi-generation starship or hibernation that passes the time away without much additional aging. Then too perhaps a super-civilization of the extraterrestrial type has been able to approach luminal velocities; perhaps have physics and engineering that can go superluminal. But one doesn’t need such extreme possibilities. All it takes is the first initial journey. Once here, our quasi-immortal ET (the ‘gods’ of mythology) sets up shop, say even a lunar outpost. No further interstellar journeys required.   

Obviously it’s unlikely in the extreme that we (humans) would just happen by chance be the lucky generation, after 4.5 billion years have passed Earth by in cosmic isolation, for us to now experience on-site cosmic company. If you were to throw a dart randomly at 4.5 billion balloons, what odds that it would hit a balloon that co-existed with humanity’s existence, even being generous and giving us (humanity) an existence of say two million balloon years, far less hitting the balloon labeled 1947 (the accepted start of the modern UFO era)?

This is IMHO actually the best anti UFO ETH argument going but when taken to its logical conclusion provides the very answer which makes the UFO ETH nearly inevitable. Indeed, it would be utterly extraordinary in the extreme if that tiny niche of terrestrial time, say 1947 to the present, were the first and only niche of terrestrial time to host a visit by extraterrestrial intelligence(s). The obvious answer is that there have been previous niches in time, intervals of time, probably lots and lots and lots of them, when ET paid a visit. ET had had billions of years to randomly (or selectively) explore the (our) galaxy. At 1% light speed it only takes 10,000,000 years to cross the galaxy edge to edge. But the galaxy is ten billion years old. If there’s lots of space-faring alien civilizations, or even if there is just one, they are probably a lot closer to us than the worst case scenario of edge-to-edge (obviously, since we’re not on the galactic edge). Those who have pondered this issue and crunched the numbers, suggest that 10,000 to 100,000 years is a rough estimate of time intervals between random visits from ET. Still, 1947 to date could easily and probably would on probability fall outside that range. Maybe the last random visit was 9,000 years ago, or 90,000 years ago. We’d still have a bit of a wait (one thousand to ten thousand years) for the next call. But, and there’s always a “but”…

To be continued…

UFOs: The Lucky Generation? Part Two

There are some pro-UFO ETH (extraterrestrial hypothesis) believers who state that aliens have only recently arrived on Earth in response to modern human activities, like our nuclear weapons detonations. Sceptics counter that it’s unlikely in the extreme that 1) aliens could have gotten from there to here that quickly, and 2) the odds that we current humans would just happen by chance be the lucky generation, after four and a half billion years have passed Earth by in cosmic isolation, to now experience for the very first time on-site cosmic company are astronomically against. So, are we the lucky generation to be the first graced by E.T., or not?

Continued from yesterday’s blog…

The 1947 Scenario Gives Way To - The Once Upon A Time Scenario:

If bona-fide UFOs are extraterrestrial visitations, then it’s highly improbable that our generation would be the generation to be privy to said visitations. In all probability, such visitations should have and would have extended back into historical times, ancient times, and pre-historical times; in fact they could extend right back to when Planet Earth was just a lifeless ball of solidifying molten rock.  They – the extraterrestrials - could have taken an active role in shaping terrestrial evolution from nearly the year dot, all the while considering themselves stewards of Planet Earth.

If one accepts the idea that UFOs are extraterrestrial spaceships, and one accepts the idea that extraterrestrials have been around for quite some considerable time (‘ancient astronauts’ anyone), then one can and should extrapolate back in our planet’s history even further and postulate that they might have been around for most, if not all of our geological history. How so?

Once upon a time, nearly fourteen billion years ago, our Universe began – exact how and why is not relevant to the scenario that follows.

Shortly thereafter, in cosmic terms, now some ten billion years ago, natural physical processes like gravity produced our Milky Way Galaxy (and lots of others besides, but they don’t feature in this scenario).

Within our galaxy, in fairly short order, lots of super-massive first generation stars blew up as supernovae creating and spreading the heavy elements required for biology – oxygen, carbon, nitrogen, etc. - through interstellar space. Those heavy elements became incorporated in second generation stars, some of which in turn became supernovae, further enriching what became third generation stars, of which our Sun (Sol) is but one of many.

By the time our own third generation star, Sol, formed with accompanying solar system and it’s third rock from the star (Planet Earth), four and a half billion years ago, our Milky Way Galaxy was already five and a half billion years old, yielding more than enough time to have generated extraterrestrial life, extraterrestrial intelligence, and extraterrestrial intelligences with advanced technologies capable of subluminal interstellar space travel.  

My basic premise therefore is that at least one, probably many, extraterrestrial civilizations have boldly gone and voyaged out into interstellar space even before our own star, solar system, and home planet ever existed, and that trend continues.

The time it takes to explore all our galaxy’s nooks-and-crannies would be a tiny fraction of the age of our galaxy. Translated, Planet Earth would have been charted billions of years ago.

That being the case, it’s logical to assume that there is at least one advanced and adventurous interstellar venturing extraterrestrial civilization currently in our here and now; probably one or more from in we include our historical past and probably hundreds extending throughout our prehistory; even more throughout the lengthy eons of our geological history,  four and a half billion years worth - translated, no matter how you slice and dice it, we (i.e. – Planet Earth) have received multi-thousands of visitations over our four and a half billion years of existence.

Based on speculative calculations by scientists interested in extraterrestrial life, ballpark numbers suggest that Sol, our solar system and Planet Earth should have received or expected, on average, a random visitation by advanced boldly going extraterrestrials every one hundred thousand years (so suggests astronomer Carl Sagan) to an even greater once in every ten thousand years (according to physicist Edward Condon).

Even varying the random frequency visitations downwards by even one or two orders of magnitude still translates into a lot of visits by an E.T. over our four and a half billion years. This not only satisfies the Fermi Paradox (“where is everybody?”),  but all those critics that point out that our first alien visitation was unlikely in the extreme to be in 1947, the start of the modern UFO era.

It doesn’t take much imagination – and many have imagined it – that E.T. has been flitting around Earth’s neighborhood on a nearly ongoing basis since the year dot. The key point is once that initial chance discovery happened, and that could have been billions of years ago, we were noted and logged as biological real estate. We’re now a colored pin in the galactic map, say green for simple biosphere; yellow for complex life, orange for intelligence and red for here be a civilization. Within one hundred thousand years of that first contact discovery (even if it were just E.T. greeting our microbial ancestors), radio communications at light speed would have informed all potentially receptive (and future receptive) extraterrestrial civilizations that here was one of those rare abodes, a planet with a biosphere, and thus one worthy of ongoing (not random) investigations – to satisfy their alien scientific curiosity if nothing else.

Our own terrestrial parallels are obvious. Once we discovered Antarctica it quickly became common knowledge. We went back, again, and again, finally setting up quasi- permanent quarters despite the obvious costs to the taxpayer and hardships to those undertaking the journey, and all in the name of science. We’ll go back to the Moon too one day – maybe not anytime real soon, but sometime. Your great grandkids will see lunar settlements or outposts like we see in Antarctica today. E.T. and Earth may have had the same ongoing relationship as humans and Antarctica. We might find we have E.T. for company on the Moon like we’ve had E.T. as sticky-beaks hovering around Earth in their UFOs.

Now recall from our mythologies around the world from all races, all cultures, all geographical settlements the tales of the sky ‘gods’ and other deities or beings associated with various constellations and stellar addresses.  Those same ‘gods’ (or ‘ancient astronauts’), who often get around in aerial or fiery ‘chariots’, gave the gifts of culture and knowledge and rudimentary technologies to primitive (hunter-gatherer) mankind. They of course stick around to monitor their experiments on their subjects.

So why don’t we have a clearer picture of these ‘ancient astronauts’ instead of having to try to come to terms with vague mythologies which is anything but crystal clear on that subject. That’s because our oral traditions (language) has existed vastly longer than our written record. Thus, there’s a long oral tradition of the ancient astronaut ‘gods’ and their relationships with humans and with each other before it all started to be written down, since language proper first came to the fore less than one hundred thousand years ago (probably less – more like fifty thousand years ago with the development of full behavioural modernity) but writing can only be traced back to roughly 6000 BC. That’s a lot of in-between time for a lot of the details to have been embellished or lost and lost too in the retellings over some two thousand human generations! Still, mythologies provide a lot of evidence that the extraterrestrial and the terrestrial have interacted.

Now fast-forward to 1947 and through to the present early 21^st Century. The ‘gods’ or the ‘ancient astronauts’ have become the aliens or the grays or E.T., and they are going to keep close tabs on us, since they know that one day, even if thousands of years down the track, we’ll boldly go too like they have boldly gone. We have our intelligence gathering agencies keeping tabs on those we need to keep tabs on; E.T. has theirs as well, keeping tabs on us.

Thus, we note that random, hence ongoing, visitations by E.T. have had absolutely nothing to do with the existence of humans and human technology, like our nuclear weapons detonations as well as our radio and radar and TV signals that are expanding throughout (to date very nearby) interstellar space that could be in theory detected by aliens at home. They didn’t need to detect them at home; they were here all along and well before humans were thought of as a fun thing to create in their philosophy.

UFOs: The Lucky Generation? Part One

There are some pro-UFO ETH (extraterrestrial hypothesis) believers who state that aliens have only recently arrived on Earth in response to modern human activities, like our nuclear weapons detonations. Sceptics counter that it’s unlikely in the extreme that 1) aliens could have gotten from there to here that quickly, and 2) the odds that we current humans would just happen by chance be the lucky generation, after four and a half billion years have passed Earth by in cosmic isolation, to now experience for the very first time on-site cosmic company are astronomically against. So, are we the lucky generation to be the first graced by E.T., or not?

It’s only in the last couple of generations that humans have had the ability to answer the question “are we alone?” Prior to the building of radio telescopes and the launching of space probes, that question rested more with philosophy and speculative science (often sci-fi) than hardcore science. So it would be coincidence beyond belief that E.T. would pop in for a visit within just those last couple of human generations that enabled us to finally search for him (or it) out there. 

If you were to throw a dart randomly at four and a half billion balloons, each balloon labeled with one year since Planet Earth came into existence (starting with one and ending up with number four and a half billion), what odds that the dart would hit any of those balloons that had dates that coincided with humanity’s time on Planet Earth, even being generous and giving us (humanity) an existence of say two million balloon years, far less hitting the one balloon that we would call 1947 (the accepted start of the modern UFO era)? Bugger all odds against! But does that of necessity negate the UFO ETH?

Aliens Are Here Because We Are Here Scenario - Otherwise Known As The 1947 UFO Scenario:

UFOs, if alien owned and operated, can only be here on (or above) Earth, in response to the on-site presence of the modern technological human. That’s actually advocated by many pro-UFO extraterrestrial hypothesis (ETH) buffs. They ask can be a coincidence that aliens have arrived here just at the same time we started playing around with dangerous toys like nuclear weapons; trespassing on their turf by going into space; and illustrating our overall stupidity by reeking environmental havoc upon ourselves.

Now the ‘aliens are here because we are here’ argument for extraterrestrial UFOs is IMHO actually the best anti-UFO ETH arguments going. Skeptics counter that for mankind to be ‘visible’ to those out there; those out there can only know about us, our ‘visibility’, via our electromagnetic (EM) signals, which propagate outwards into the cosmos at light speed. Our EM signals (optical nuclear blasts, radio/TV broadcasts, radar emissions, etc.) haven’t had much time to get very far out into the cosmos, because prior to say 1900 Earth was pretty damn quiet in terms of giving off human technological EM noise. Even our atmospheric pollution, potentially detectable from way out there via spectroscopic analysis, wasn’t really at highly abnormal levels prior to 1900. It’s only in the 20^th Century did our visibility really kick into high gear.

So, if you take 1947 as the start year of the modern UFO era – their arrival date – and assuming the aliens left home as soon as they detected our EM signal(s), then their home has got to be so relatively near to Earth as to be statistically unlikely in the extreme. Since E.T.’s home is certainly not within our solar system, then by elimination, that leaves the nearby stars. But only subluminal interstellar travel is possible (so proclaimed Einstein in his Special Theory of Relativity), and even interstellar velocities of say ten percent light speed are really pushing reasonable limits. Our closest stellar companions are over four light years away, so it would take E.T. over forty years to reach us from our closest stellar abode at ten percent light speed. Add to that the four light years it took our EM signal to reach them in the first place, well that’s about forty-four years all up. Subtract that from 1947 – well, 1903 isn’t known for our high intensity radio broadcasts; radar, TV and the light from our nuclear blasts were still future technology. Our city lights weren’t exactly going to be blinding their telescopes either. Therefore, according to the skeptics, E.T. didn’t arrive in 1947 due to any human activity, and since obviously only human activity would attract E.T. to travel here in the first place, therefore UFOs can not be anything alien! So say the skeptics. 

But the skeptic’s basic assumption here is that E.T. was out of range back at home. E.T. was in another extra-solar planetary hemisphere, country or city, across the gulf of interstellar space and far away from where the terrestrial action was. Alas for the skeptics, even if the aliens arrived out of concern to post-1900’s human activities (according to some UFO believers), that could mean the aliens were already here, if not on-site, then in our immediate solar system neighborhood, like having a lunar base, or even an orbiting space colony ship, say out in the asteroid belt, as base of operations. One doesn’t have to postulate them being a minimum of over four light years away (the distance to our nearest stellar neighbor).

So the basic assumption here by some pro-UFO ETH believers, that aliens arrived first in 1947 because of human activity is just so anthropomorphic (human centered) as to be laughable It’s an egocentric inspired, but just a coincidence, that alien UFOs are around when humans dominate Earth’s environment. As we’ve seen, the skeptic’s counter argument fares little better in the logic department.

But when taken to its logical conclusion, skeptics do provide the very answer which makes the UFO ETH nearly inevitable. Indeed, it would be utterly extraordinary in the extreme if that tiny niche of terrestrial time, say 1947 to the present, were the first and only niche of terrestrial time to host a visit by extraterrestrial intelligence(s).

Let’s forget the human element – as per the above argument for E.T. being here. Planet Earth has been noted and logged in a galactic database for a minimum of millions of years, more likely as not at least an order or two of magnitude greater – say billions of years.

The obvious answer is that there have been previous niches within terrestrial time, intervals of time, probably lots and lots of them, when E.T. paid a visit. E.T. has had billions of years to randomly (or selectively) explore our galaxy. At ten percent light speed the galaxy can be explored, even colonized in one million years. At one percent light speed it only takes ten million years to cross the galaxy edge-to-edge. Only ten million years? You might think that’s a hell of a long time, but the galaxy is ten billion years old. If there are lots of space-faring extraterrestrial civilizations, or even if there is just one, they are probably a lot closer to us than the worst case scenario of edge-to-edge, obviously, since we’re not situated on the galactic edge, we’re more like two-thirds the way out from the galactic centre.

Those who have pondered this issue and crunched the numbers, suggest that every ten thousand to one hundred thousand years is a rough guesstimate of intervals of time between random visits from E.T. 1947-to-date could easily and probably would fall outside that range. Maybe the last random visit was nine thousand years ago, or ninety thousand years ago. We’d still have a bit of a wait (one thousand to ten thousand years worth of wait) for the next call. But, and there’s always a “but”…

To be continued…

UFOs: The Fermi Paradox

Where is everybody?" was a question posed by physicist Enrico Fermi. The 'paradox' is that extraterrestrials should be here, yet there is no indisputable evidence to support that. Or is there? Those pesky UFOs just will not go away!

The Fermi Paradox (after physicist Enrico Fermi) briefly goes as follows. Extraterrestrial intelligences with advanced technology and interstellar spaceflight capability exist. Sub-light interstellar spaceflight violates no laws of physics. Adopting the mantra of quantum physics, ‘anything that’s not forbidden is compulsory’. The time it takes to explore every nook and cranny of our Milky Way Galaxy via sub-light interstellar spaceflight is a tiny fraction of the age of the Galaxy. There’s at least one universally valid reason to boldly go – species survival. No star, no solar system lives forever. We (Planet Earth) can’t hide from alien exploration and/or colonization. So, where is everybody? [By analogy, terrestrial life forms like bacteria, ants and cockroaches, birds, and of course humans, have explored and colonized Planet Earth in tiny fractions of the time that Earth itself has existed.] So again, where is everybody?

I can hear screams of ‘objection, objection’ now. It’s obviously too far and takes too long to get from there (wherever that is) to here. Well, life wasn’t meant to be easy! Seriously, if you think about it a while, methinks you protest too much!

Firstly, aliens could have a very long natural lifespan relative to us carbon-based terrestrial bipeds. There’s no natural law that confines intelligent life forms to an existence of just three score and ten.

Secondly, advanced extraterrestrials may have perfected various hibernation techniques. Put your spaceship on autopilot and sleep the long journey away. 

Thirdly, there’s that way old sci-fi chestnut, the multi-generation interstellar spaceship. While I feel that’s an unlikely concept, especially for exploration, it might not be quite so far out if the objective is interstellar colonization.

Then there’s bioengineering, turning an organic body into something that’s more machine than flesh and blood, perhaps akin to Doctor Who’s Daleks. Given advances in artificial body parts for humans, albeit it hip replacements or dentures or even mundane tooth fillings, that’s certainly a valid possibility.

Fifthly, why stop there? Send 100% machines – artificial intelligences in the form of cybernetic ‘organisms’ or robots or androids or tiny nanotechnology machines. One obviously things of Data from ‘Star Trek: The Next Generation’, or something akin to the original ‘Battlestar Galactica’ Cylons. Think of the savings in not having to provide life support and other life essentials for biological organisms. We’ve made a start already down this path. There’s nothing different in principle between a Cylon and our Pioneer 10 & 11; our Voyager space probes. It’s just that a Cylon is a lot more sophisticated. The day will come when our Pioneers and Voyagers will morph into something approaching a Cylon, or any one of multi-dozens of similar ‘beings’ in the sci-fi literature. Since AI is nearly immortal (relative to flesh and blood), that takes care of travel time arguments, and the possible environments fit for relative easy exploration (colonization?) are expanded greatly.  

Lastly, maybe, just maybe, a sort of warp drive, faster-than-light ship is possible. Aliens whose science is thousands of years more advanced than ours just might have gotten around Einstein’s speed limit. I wouldn’t want to wager any money on it, but I’d be less than open minded not to admit the possibility, however remote.  Add to that, theoretical but allowable ‘gateways’ between distant points of our Universe, maybe even to other universes – wormholes and Black Holes. Maybe, just maybe, an advanced alien civilization has the ways and means to manipulate such objects and forces to facilitate easy travel in space (and time too maybe).  An excellent hardcore science based sci-fi novel that doesn’t rely on pseudo techno-babble that illustrates this is Carl Sagan’s “Contact”.

So yet again, where is everybody?

Answers include (but aren’t really limited to) general concepts that suggest that…

They don’t exist; never have and never will. What’s wrong with that? Well, given the vastness (100,000 light-years across) and timelessness (over 12 billions of years minimum) of our Milky Way Galaxy’s entire expanse, the odds that we are the proverbial IT, the one and only, is extremely unlikely. It’s a massive violation of the Principle of Mediocrity or the Copernican Principle.

We’re the first kids on the block, not the new kids on the block. What’s wrong with that? Again, the odds that in all the vastness of our Milky Way Galaxy we should happen to be the first, is unlikely in the extreme. Our Solar System is but 4.5 billion years old; our Galaxy is way, way, way, way older than that.

They exist but don’t care to explore space, to seek out new life and new civilizations. They don’t want to boldly go or seek communications. They want to be left alone – isolationists. What’s wrong with that? That might be true for one, or several alien civilizations, but to extrapolate and suggest that that applies across the board to each and every extraterrestrial civilization is illogical.

They boldly go, but haven’t come our way yet. What’s wrong with that? Again, it doesn’t take that long to explore the entire Galaxy. It would be a fluke if we hadn’t of been noted and logged in some other civilization’s database.

They’re here, but leave us alone. What’s wrong with that? Again, that might be true for one, or several alien civilizations, but to extrapolate and suggest that that applies across the board again strikes me as illogical. There is such a thing called the Zoo Hypothesis to explain the Fermi Paradox. It’s both a Star Trek ‘Prime Directive’ concept combined with that of a zoo. Aliens (the zoo keepers) don’t interfere with us (though of course every now and then the zoo keepers have to interact with the animals (humans) in the zoo), don’t allow others to interfere with us, yet probably wouldn’t allow us to escape the cage (meaning probably the confines of our solar system – I mean we have been allowed to travel to the Moon).

They’re here and interact with us and our environment - UFOs anyone? What’s wrong with that? Absolutely nothing!

UFOs are a perfect answer to the Fermi Paradox!

Further readings: The Fermi Paradox

Hart, Michael H. & Zuckerman, Ben (Editors); Extraterrestrials: Where Are They?; Pergamon Press, N.Y.; 1982:

Hart, Michael H. & Zuckerman, Ben (Editors); Extraterrestrials: Where Are They? [2^nd edition]; Cambridge University Press, Cambridge; 1995:

Verma, Surendra; Why Aren’t They Here? The Question of Life on Other Worlds; Icon Books, Cambridge; 2007:

Webb, Stephen; Where Is Everybody? Fifty Solutions to the Fermi Paradox and the Problem of Extraterrestrial Life; Copernicus Books, N.Y.; 2002:

UFOs: Sorry, Interstellar Space Travel Is Bunk!

Where is everybody? “Everybody” in this case are those extraterrestrial aliens. UFO believers say they are here, but UFO non-believers say surely they (the aliens) can’t get from there (wherever there is) to here – interstellar space is the ultimate no-fly quarantine zone and since superluminal velocities (i.e. – Star Trek’s warp drive comes to mind here) are a violation of Einstein’s special theory of relativity, that takes care of that. E.T. exists but can’t get here; therefore UFOs can’t be the products of E.T. Want to bet?

According to many scientists, especially when it comes to the exploration, migration and colonization throughout the cosmos by extraterrestrial intelligences, outer space is your ultimate no-man’s-land and quarantine zone. No exploration; no migration; no colonization. Any intelligent life is pretty much going to be confined to their very own planetary abode or solar system.

That’s probably true if contemplating intergalactic (between galaxies) space where distances to your nearest galactic neighbour are measured in millions of light years; that’s certainly not true for interplanetary (between planets) space where distances to your nearest neighbour are measured in light minutes to light hours; now that’s leaving a question mark over the middle ground – interstellar (between stars) where distances to your neighbour are measured in several light years.

But while interplanetary travel is plausible in terms of reasonable travel times as witnessed by our own unmanned space probes to the planets and many moons within our solar system, exploration, tourism, or migration where we’re on the receiving end isn’t likely. We can’t expect any interplanetary visitors, those locals within our solar system, with itchy tentacles desiring to explore the local neighbourhood of which we’re a part of, to come calling. The era of the advanced Martian civilization, canals and all, not to mention “The War of the Worlds” scenario, are now long gone, confined to a ‘what if’ history that never eventuated.

Visitors from other galaxies are out of the running as well because as noted above the distances needed to be crossed are many orders of magnitude greater relative to short-hop interplanetary trips. It is one thing to swim several dozen lengths of the pool; quite another to swim across the Atlantic.

With no existing intelligent non-terrestrials of the local kind that can visit us, and extraterrestrials from other galaxies confined to those galaxies, well that still leaves several billion of stars in our own galaxy which E.T. might phone if away from home.

Of course phoning home is going to be a function of where you are within our star-stuttered galaxy. Towards the inner regions of our galaxy (like the inner regions, the CBD, of our cities), stars aren’t as far apart as where we (humans) are out in the suburbs, even perhaps out in the boondocks. It’s cheaper to phone home at local (CBD) distance rates; more expensive when dealing with those boondocks long distance charges.

Regardless, whether you are in our galactic CBD or out in the suburbs or even in the boondocks, I maintain it doesn’t take all that long to get from one (say the CBD) to the other (the boondocks).

I can now hear screams of ‘objection, objection’ to that. Galactic CBD to galactic boondocks; well it’s all obviously way too far and takes way too long to get from there (wherever that is, say the galactic CBD) to here (Planet Earth; location: galactic suburbs if not the boondocks). Well, life wasn’t meant to be easy! Seriously, if you think about it a while, any serious objections fade away. If you don’t want to think about it for yourself, then see below!

Unfortunately for the sceptics, fact number one is that E.T. doesn’t need any wormhole or theoretical ‘warp drive’ or other ‘Star Trek’ type superluminal velocity techno-babble to explore the galaxy and boldly go where no alien has gone before.  Sure, space is really BIG but it is also very old. There’s lots of time available to explore and colonize starting a few light years outward at a time. Consolidate, and then expand some more. Repeat as often as required. The time it would take to explore and colonize the Milky Way Galaxy (that is, via interstellar travel) is but a small fraction of the age of that galaxy even if a race of E.T.’s never travelled at more that say 1% to 10% the speed of light. Such velocities, while pretty fast by our current abilities, shouldn’t be beyond the means of a technologically advanced race. I mean to cross 100,000 light years of interstellar space, at 1% the speed of light, requires but 10 million years. Our galaxy is ten billion years old. If you doubt this, consult any elementary astronomy text for the relevant distances and volumes and ages and do the calculations for yourself if you like.

Regardless of that bit of mathematics, UFO sceptics would still have you believe that interstellar space travel is at best highly improbable, and at worst impossible. Therefore, UFOs cannot represent the technology of a space-faring race of extraterrestrials. Hogwash! I can not believe this old and totally outdated chestnut is still bandied about since there are terrestrial equivalents and even a human parallel.

Okay, space is really BIG. Planet Earth was really BIG to human society too many centuries ago, but that didn’t stop our planet being explored from pole to pole, even if individual journeys took many years. And bacteria, insects, birds, and other terrestrial life forms preceded us in exploring and colonizing Planet Earth all in pretty quick-smart order.

While it’s proved relatively easy for humans to colonize Planet Earth, humans cannot travel to the stars because we can’t travel fast enough within our short life-spans to make the journey from start to finish, and I assume here that if you start the journey you want to be around to finish the journey.

Now there is no law in biological science that says an intelligent flesh-and-blood entity must kick-the-bucket after roughly three score and ten years. If you recall from mythology, the cosmic and sky ‘gods’ were (at least from a human perspective) as close to immortal as makes no odds. Quasi-immortality makes interstellar travel quite feasible.

Aliens could have a very long natural lifespan relative to us carbon-based terrestrial bipeds. Again, the point must be emphasised that there’s no natural law that confines intelligent life forms to an existence of just three score and ten terrestrial years.

What if you have an alien race with life-spans way, way surpassing ours?  The idiotic assumption by the anti-UFO boldly going skeptics is, in a very anthropological way, that E.T. of necessity must have a lifespan equal to that of humans, or is confined to technologies equivalent to our own 21^st Century technologies. E.T. could have, and probably did have, a multi-billion year head start on us since our galaxy was already some 5.5 billion years old before Planet Earth (plus Sun and associated solar system) even formed out of interstellar gas, dust and associated debris.

That 21^st Century technological equivalency that aliens must have relative to us is more hogwash: any alien intelligence that can visit us will have technologies far beyond our own. There’s a possible likely alternative to a naturally longer life span relative to humans: what of a bit of the old fashion genetic engineering to increase life expectancy? Or there’s the likelihood of enhanced bioengineering (part flesh; part machine) to accomplish the same goal. What if an exploring race were to adopt those old stand-by sci-fi concepts of suspended animation or a multi-generation interstellar spaceship? Let’s have a look at those in turn.

Genetic or other forms of bioengineering could artificially extend life-spans by many orders of magnitude. Perhaps flesh-and-blood has morphed into nearly all silicon-and-steel; turning an organic body into something that’s more machine than flesh-and-blood, perhaps akin to the Daleks as featured in “Doctor Who”. Given advances in artificial body parts for humans, albeit it hip replacements or dentures or even mundane tooth fillings, that’s certainly a valid possibility if one extrapolates ahead from today to mere decades to centuries ahead.

But why stop there? Send 100% machines – artificial intelligences (AI) in the form of cybernetic ‘organisms’ or robots or androids or tiny nanotechnology machines. One obviously thinks of Data from “Star Trek: The Next Generation”, or something akin to the original TV’s “Battlestar Galactica” Cylons. Think of the savings in not having to provide life support and other life essentials for biological organisms. We’ve made a start already down this path. There’s nothing different in principle between a Cylon and our Pioneer 10 & 11; our Voyager 1 & 2 space probes. It’s just that a Cylon is a lot more sophisticated. The day will come when our Pioneers and Voyagers will morph into something approaching a Cylon, or any one of multi-dozens of similar ‘beings’ in the sci-fi literature. Since AI is nearly immortal (relative to flesh-and-blood), that takes care of travel time arguments, and the possible environments fit for relative easy exploration (colonization?) are expanded greatly. Artificial intelligence can boldly go where no man (flesh-and-blood) has gone, or could go.  

There’s the standard sci-fi scenarios of the multi-generation starship or hibernation that passes the time away without much additional aging. Even if E.T. has a biological lifespan roughly equivalent to our own, advanced extraterrestrials may have perfected various hibernation techniques. Put your spaceship on autopilot and sleep the long journey away.  That sort of scenario has been a staple of science fiction for generations, for example think of the movies “Alien” or “2001: A Space Odyssey” or the original “Star Trek” TV episode that featured Khan.

There’s another sci-fi staple that could get E.T. from there to here. That way is via the old sci-fi chestnut, the multi-generation interstellar spaceship. While I feel that’s an unlikely concept, especially for exploration, it might not be quite so far out if the objective is interstellar colonization.

Then too perhaps a super-civilization of the extraterrestrial type has been able to approach luminal velocities; perhaps they have knowledge of physics and engineering that can even go superluminal. Maybe, just maybe, a sort of warp drive, faster-than-light spaceship is possible. Aliens whose technological science is thousands, tens of thousands, and even beyond that in years more advanced than ours just might have gotten around Einstein’s faster-than-light speed limit. I wouldn’t want to wager any money on it, but I’d be less than open minded not to admit the possibility, however remote.  Add to that theoretical but allowable ‘gateways’ between distant points of our Universe, maybe even to other universes – wormholes and Black Holes. Maybe, just maybe, an advanced alien civilization has the ways and means to manipulate such objects and forces to facilitate easy travel in space (and time travel too maybe).  An excellent hardcore science-based sci-fi work that doesn’t rely on pseudo techno-babble that illustrates this is the novel by Carl Sagan, “Contact”.

But one doesn’t need such extreme possibilities. All it takes is the first initial journey. It’s like migrating from New York City to Sydney, Australia. Once in Sydney, it’s all local commuting. So once here, our quasi-immortal, technologically advanced E.T. (yesteryear the ‘gods’ of mythology; today UFOs) sets up shop, say some sort of artificial space colony out in the asteroid belt, maybe even a lunar outpost. No further interstellar journeys required.  So in a roundabout way, one interstellar journey by E.T. from somewhere else in our galaxy, morphs into just short-hop interplanetary journeys from that point on. There may not be intelligent Martians that come a-calling, but that doesn’t mean our solar system doesn’t play host to another alien intelligence – they’re just not originally an indigenous native, but rather an interstellar migrant.