Archives For alien life

alien astronaut

Looking for aliens is hard, we all know that. Considering just how much space we need to scan while knowing full well that we’re looking for the equivalent of a needle in all the hay on Earth, a lot of proposals have been put forward to try and narrow down the slice of the sky on which we need to focus to make the task a little more manageable. We’ve tried looking for a planet-sized semaphore and think we might have found one, evidence of asteroid mining, and even gravity waves from relativistic rockets, but the amount of effort is still immense. Now, two researchers from a Canadian university say they have a much better plan to find aliens. Simply assume that distant alien species is looking for us in much the same way we are looking for them and would want to contact us with lasers and radio broadcasts when they detect Earth. This means we will only need to focus on planets from which we know extraterrestrial astronomers could spot us in the middle of a transit event, much like Kepler spots exoplanets transiting their stars. Seems to be fairly straightforward, right? Yes, it does. Actually, it seems way, way too straightforward.

First and foremost, this approach limits us to a sliver of the sky and pins its hopes on a curious, intelligent species interested in its place in the cosmos and looking for other intelligent life. It’s a huge leap which involves so many coincidences and good luck to pan out in our favor that we’d have to raise at least a few heckles on the subject. After all, even if intelligent life is plentiful and there are countless aliens that want to explore space and talk to other alien life forms, there’s a matter of when these species evolve and develop the technology to act on their curiosity as well as when other species will evolve and develop theirs. A thousand year mismatch seems virtually inevitable because on cosmic and evolutionary time scales, it’s a blink of an eye, and that’s the amount of time in which an entire civilization can rise and fall to be replaced by another. There are societies that lasted far longer than that, true, but they’re the exception rather than the rule and as civilizations rise and fall, their priorities change. There may be a long window for a guild of alien astronomers to scan the skies and a very short one for another species to respond.

Another big problem with this assumption is the idea that aliens would be curious, or care that another intelligent species is out there. We often project our aspirations to hypothetical species and picture them as hyper-literate space-faring explorers seeking out other life. In reality, quick surveys right here on Earth will show you that even a supposedly curious species like us places an extremely low priority on SETI research. In fact, countless people think it’s just a huge waste of time and money, and to assume that there will be no aliens who could find us and contact us but choose not to because they honestly don’t give a damn, would be a big mistake. Hell, they may be religious zealots who believe that looking for other intelligent life is a mortal sin. Waiting for them to send a signal to us from a narrow patch of the cosmos would be a fruitless exercise in wishful thinking. And that’s kind of what this proposal really is. Wishful thinking when it comes to alien life, hoping that they’re out there, watching, listening, and trying to reach us because it’s what we’d really like them to do. As nice as it would be if that was truly the case, the universe is not known for coddling our personal desires. If we want to find alien life, it’ll take a while…

saturn and enceladus

We’ve known for a while that Saturn’s moon Enceladus should have a huge ocean under all the thick surface ice thanks to the plumes of water it regularly ejects into space. These jets couldn’t have come from melting ice because they were salty, the kind of salty only possible with ocean water being heated by active geology. Given the amount of work that went into analyzing them, yesterday’s official confirmation from NASA, which looked at the moon’s wobble and found clear and obvious signs of a global ocean, was actually kind of expected. Enceladus’ wobble is simply too significant for a world made entirely of ice and rock, and requires a massive volume of liquid water to explain. Locked under 19 to 25 miles of ice, this ocean is estimated to be 6 miles deep and has a volume of approximately 8 million cubic kilometers. It’s less than a hundredth of what we have there on Earth, but Enceladus is 25 times smaller, so relative it its size, that is a huge amount of liquid, salty, real estate for life to flourish. And not just life, but life as we know it.

That’s actually the real reason to get excited about going alien hunting on Enceladus. Normally, when talking about living things in the outer solar system, we need to start considering all sorts of exotic chemistry we don’t yet fully understand. This means finding life on say, Titan, could be a much more ambiguous endeavor and there will always be room to doubt what we discovered due to some quirk of the local environment. Enceladus, on the other hand, has oceans warmed by tidal churn, much like Europa, and with extremely strong hints of hydrothermal activity not at all dissimilar from the bottom of the oceans right here at home. The same chemistry that made life on Earth possible is more than likely taking place under the moon’s ice shell. When we start diving into its ocean, we could very well encounter organisms we’d instantly recognize as living beings; alien arthropods, worms, and plants converting volcanic gases into rich nutrients.

When next month’s close fly-by by Cassini happens, we will get much better close-up images of the ice shell, but I wouldn’t expect anything too groundbreaking. At this point, with the evidence at hand, we should start dusting off the plans to explore this frozen ocean, although melting the many miles of ice on Enceladus would be much, much harder than the alternative of finding the rifts in Europa’s ice sheets and scurrying to dive in. It would be a difficult mission because there are pretty much no shortcuts to the nuclear-powered drills and heaters required for Enceladus. Even trying to break up the ice with kinetic impacts from orbit wouldn’t really do much because at -292° F, the ice is more like rock than just frozen water, and the impactors would just bounce off after a glancing blow. So when the time finally comes to dive into the dark, hidden oceans of the outer solar system’s moons, expect Europa to be first on the list thanks to its proximity, and the dynamics of its ice sheets. After that, however, Enceladus is bound to be the next stop…

egyptian wall

Sometimes, you have to go out of your way to look for post material. Sometimes, ideas brew in the back of your head until you have a complete thought that works. And sometimes, the exact blog fodder you didn’t even know you sought until you saw it arrives in your inbox on its own. In the years this blog has been up and running, the number and the frequency of posts while I am actively writing, gave plenty of journalists and PR agents the idea that this is my full time job. It’s not, as should be clear from my short bio, but nevertheless, unsolicited press releases, offers to do interviews, and review copies of books get sent to me on a regular basis. Most of the books in question won’t be blockbusters flying off the shelves at your local bookstore, or on back order from your favorite online retailer, i.e. Amazon, so I seldom mention them. But this one, while not destined for the bestseller list as well, is actually noteworthy in its own, very bizarre way.

Across the ufology and ancient alien theory community, there’s a pervasive idea of human-alien hybrids either living among us, or being with us in the past. When the whole idea was just being distilled into von Daniken’s books, the most popular alternative history of humanity held that we were all of alien origin, engineered to be slaves to an extraterrestrial civilization known to us as the Anunnaki. Compared to other species on this planet, the theorists argued, we were way too smart for our own good and biology alone can’t explain the sudden leap in intelligence. Until the alien part would’ve come up, you could’ve sworn you were reading a creationist tract. But as of late, there’s been a bit of a refinement along the lines of David Icke’s ideas. Humans evolved on their own, just as we were taught in a proper science class. It’s just that some humans had very unconventional families in which mom or dad was an alien from the otherwordly ruling caste. I’d like to think of it as a classic fairy tale but the prince or princess is a lizard from Tau Ceti.

Problem is that the original theory makes more sense than the emerging one because we can’t possibly hybridize with an alien life form, even if we consider the implications of panspermia for some sort of common origin for our species. No matter how closely the organic compounds that gave rise to human and any hypothetical alien life would match, the entire hereditary machinery would depend on the chemistry of their home star system. Even something as basic as DNA on another world could look familiar, but have radically different fundamental elements. Usually, an evolutionary path which took place on the same planet, forking fewer than a million years ago is a requirement for even the idea of successful hybridization, though the degree of success could vary wildly, and most offspring would end up sterile a few thousand generations into it. Should a spacecraft in our far future ever land on a planet around another star where other humans with whom we’d successfully procreate live, a lot of very interesting questions will need answers, but that’s pretty much the only way we could reproduce with any functionally alien species.

But you see, the theorists have thought of that. No matter how radical the differences in DNA or underlying physiology are, a sufficiently advanced civilization could manipulate it to produce the desired effect. We’re already starting to get a good handle on genetic engineering, so shouldn’t star-traversing aliens be even more adept at the technology? And that’s pretty much the vein in which ufologist and cryptozoologist Nick Redfern argues in the aforementioned book, that rare, complex human blood types called Rh negative are the result of Annunaki genetic engineering, and that pregnancies in which the mother is Rh+ and the fetus is Rh- are a telltale sign that the incompatibility isn’t a quirk of biology, but of alien tinkering. He goes even further to attribute the blood group to Rhesus monkeys and posit that by the theory of evolution, an Rh- human would have had to deviate from our normal evolutionary past. After all, how would you possibly argue with the forces of evolution and genetics without denying a century of scientific progress?

Well, you do it by pointing out that pretty much everything underpinning Redfern’s idea is a very drastic oversimplification strapped to the Hyperbole Rocket™, and blasted into space, fueled by a pseudoscientific word salad on its way into orbit. There is nothing so terribly mysterious about the Rh blood group that any deviation from norm could only be alien in origin, the Rh+ and Rh- designation is actually just a flag as to whether the blood cell proteins have something typically known as the D antigen, one of some 50 other antigens in the Rh group. The group was named after the Rhesus monkey because chemical reactions with its blood were used to help scientists study the group and find out how to treat Rh factor incompatibilities during pregnancy. It’s really kind of a misnomer to bring up these monkeys, according to the NIH. To say that about 10% of humanity lacking a single antigen in about 50 during a single test can only come about through alien intervention sounds somewhat absurd in this light. While we’re at it, what about the CCR5 mutation which renders less than 1% of us immune to HIV? Is this proof of aliens as well?

Rather than only being logical that every human should share the same evolved traits, that can only happen through cloning. Should you look hard enough at the 0.5% of the genes making us unique individuals created by sexual reproduction rather than budding or self-fertilization, and a whole lot of differences emerge. For example, those living in the Andes and Himalayas evolved completely different ways to cope with living at extreme altitudes. Native Africans seem to have less in common with each other than with Eurasians, genetically speaking. And one in as many as 8 million children may suffer from progeria, a genetic mutation that accelerates aging. Using the same logic as Redfern, we could point to any rare or peculiar fact in human genes and then claim them to be a side-effect of alien genetic engineering because they’re rare or peculiar. But that would make just as little sense. So should you ever find out that you’re Rh-, don’t worry, an investigation into your genetic lineage won’t uncover a great-to-the-500th-degree-grandma who came to Earth in a flying saucer. Chances are that every ancestor you had was very human.

inhuman pope

While the news keep calling Kepler-452b another Earth before somewhere in the depth of most breathless articles noting that all we know about it is that it’s rocky, similar in size to us, and it’s orbiting its parent sun exactly where it should to have liquid water, but we have no idea if it can actually support life or if its atmosphere actually allows liquid water to remain liquid. After all, we thought for many centuries that Venus must be a tropical rain forest underneath its clouds. As a candidate for a second Earth it was perfect on paper. Same size, the right orbit to allow for vast oceans of liquid water, thick atmosphere; it all looked so promising. And then the Soviets ruined everything by landing a probe on its surface to confirm it was a planet sized kiln, and the clouds were actually a miasma of noxious poisons. Kepler-452b could easily turn out to be suffering an eerily similar fate. Of course, it would be amazing if we could take direct snapshots of it and see massive oceans and clouds of water vapor, but until then, we should hold the champagne.

Regardless of what we learn about Kepler-452 however, theologian Mark Lindsay is ready with an opening salvo against the unbelievers who would use another Earth as an argument against the religious tenet that humanity was specially created by a deity and destined to play a big role in the fate of the cosmos. Just like every high minded theologian, he adopts a toned down view expressed by Bruno that the magnificence and wisdom of God could not be constrained just by one planet but that the Bible allows for many planets and many beings on those planets that all happen to be God’s children. Therefore, he says, should we find intelligent Keplarians, they will be another confirmation of the vast reach of the divine powers of creation rather than proof that our world’s religions aren’t up to snuff when we look to the stars with some knowledge of what’s out there and what we’re doing. It sounds like the comforting, borderline-deist verbal ointments voiced before when the scientific search for alien life got underway. But it also glosses over the important and immutable parts of faith academic theologians like Lindsay so often avoid.

Remember the opinion voiced by Bruno that Earth isn’t the only inhabited planet watched by an almighty creator liberally borrowed by Lindsay? Do you also happen to remember how it ended for him? Rather than being praised for his insight and his ability to harmonize science with faith, he was burned on a pyre as a heretic. Many believers hold that their faith is special and the text they call sacred is literal and inerrant. Should you question it or reject any of it, they are justified in retaliating against you, be it shunning you until you’re a social outcast, or murdering you with machetes for the glory of their god. Nowhere do many religious texts speak of other worlds, and those that do refer to them as places where gods dwell rather than just other Earths. Just tell a cleric who preaches his faith in ISIS territories that Earth may not be the only world where Allah watches what happens and see how that works for you. Or try asking Evangelical Christians for an opinion of evolution on alien worlds and try to have an open-minded discussion. Ivory tower theologians seem to forget how literally the faithful take their holy texts and how big of an issue that becomes when they’re taken out of their comfort zone. It’s a debate-changing omission.

Also, how many religious texts hold that certain people are picked over others to play a bigger, or defining role in universal affairs? How many chosen people are there? What about aliens on other worlds intelligent enough to try and interact with us? What’s their role in the universe and which holy text says that? Do the ones that do contradict each other and if they clash, which of these inerrant, literal, irrefutable texts is the right one? These aren’t trivial questions by the way, but very real problems posed by introducing an intelligent species into ancient religions. If they are also God’s children, where in the family tree do they fit? There definitely have been many a sincere attempt to look for alien-friendly metaphors in Torahs, Bibles, and Qu’rans, but none of them have been accepted by mainstream theologians, much less mainstream believers as the faith’s canon. As far as today’s gamut of belief runs, there seem to be only two places for aliens to occupy. They’re either irrelevant to God’s plan and shouldn’t even be mentioned, or they are actually angels or demigods in their own right sent by a deity to warn, teach, or punish us.

Of course the latter possibility only applies to highly advanced alien civilizations that understand interstellar travel and can communicate with us, and only in the context of highly educated, and wealthy nations where fundamentalism tends to be more subdued on average. What if they are not that far ahead of humans as far as science and technology goes? What rules apply to them out of the holy texts? If there are things humans do that displease God, surely there must be an equally important list of prohibitions for the aliens. We’re told that here on Earth, premarital sex is a sin. If the alien species in question don’t have the concept of marriage, are they all sinners, or are they exempt from the universal law of morality ordained by God? If homosexual pairings anger God who made all things male and female, do hermaphroditic aliens violate the law or do they have to follow a different set of rules? If they have their own set of divine rules to follow, is this list handed down to them and if so, in what form? Are they, like humans, apparently meant to follow some of the laws but not others citing some grand religiously historical effect?

All these questions might seem positively asinine in context, especially when talking about alien species we know nothing about and which may not even exist. But at the same time, when you take to a public podium and proclaim that your faith is ready for alien life without demonstrating how exactly it would work in light of the new discovery and how you intend to get today’s faithful to follow your lead, these are the kind of questions that go unanswered. Simply throwing out an extremely confident assertion that your religion can withstand whatever your throw at it without actually throwing anything at it to demonstrate means that you’ve just dodged the question you wanted to address. When citing a scientist’s argument about aliens being bad news for God as his jump-off point, Lindsay scoffs that his verbal target has no experience or knowledge how to properly analyze a religious text. He then hypocritically spends the rest of his argument parsing conveniently sourced semantics that aren’t even from the Bible. And this is why it’s hard to take a theologian espousing the powers of his faith in light of new science seriously. Instead of really asking what new discoveries means for their faith, they craft reflexive, soothing word salads.

[ illustration by Aram Vardazaryan ]

pop culture aliens

If you don’t remember Chandra Wickramasinghe, here’s a quick refresher. Back in the day, the scientist worked with Fred Hoyle, the brilliant astronomer whose really poorly supported notions about the origins of life inspired many a creationist, and led him and a few of his colleagues on a hunt for evidence of panspermia, the idea that life originated somewhere in deep space and as our planet was finally settling down after its turbulent infancy, it settled here and evolved into all the species we know, and numerous ones we don’t. On the face of it, it’s not an inherently bad, or even wrong idea. It has actually been around since Darwin started wondering about the very same questions, and despite being occasionally criticized, it’s still popular in astrobiology. There does appear to be plenty of interesting evidence in favor of at least some building blocks of life coming form space, especially from asteroids and comets. This is why finding complex organic structures in the carbon layer of 67P wasn’t a surprise at all. In fact it was widely expected.

Yet according to Wickramasinghe, it’s proof that comet 67P is actually teeming with life and the scientific community at large needs to step up and announce that we found aliens. Despite how generously he’s treated by The Guardian’s staff writer however, he’s not a top scientist and his claim to expertise in astrobiology comes from declaring pretty much every newsworthy event in any way related to viral and microbial life as undeniable proof of aliens. He’s done this with mad cow, polio outbreaks, SARS, AIDS, and one of his fans recently declared that Ebola could have come from outer space. His proof of all this? Pretty much none. What papers he published to at least clear up how he thought life actually got its start and how it can travel across billions upon billions of light years so easily were in a vanity journal which was basically mocked into shutting down after failing to include a single entry of real scientific merit, and are absolutely inane. Hey, personally, I’m a huge fan of the panspermia hypothesis myself, but even in my very generous approach to reviewing astrobiology papers, what Wickramasinghe produced was absurd.

But of course, as all cranks eventually do, Wickramasinghe cried conspiracy after his work was battered by other scientists, declaring that astrobiology was a discipline under assault from the conservative geocentric cabal made up of old scientists hell bent on shutting down research on possible alien life forms in the wild. This came as a surprise to the flourishing researchers who had been studying extremophiles, theoretical alien biochemistry, and discovering more proof of organic molecules and water floating in space. You see, astrobiology is doing great and keeps advancing every day. Wickramasinghe, on the other hand, is not doing well because he doesn’t actually conduct any rigorous scientific experiments while desperately aspiring to be the person who goes into the history books as the scientist who discovered alien life. His constant attempts to stay in the media spotlight with his out-of-left-field proclamations and conspiracy theories are the typical self-serving machinations of a vain elder past his prime jealous that someone else is going to do what he aspired to accomplish. Honestly, it’s a sad way to end one’s career, to just chase after those doing the real work with outlandish soundbites and wallowing in self-pity.


The bizarre creature pictured above is an arthropod, a distant relative of crabs and lobsters, an amazing evolutionary blip during the Cambrian Radiation. We know three things about it. It was predatory, it was one of many such weird animals trying to eek out a living in the shallow water off uninhabitable coasts, and considering its lineage, it was likely delicious steamed and with a measured touch of melted butter. We also know that despite being an evolutionary dead end, it’s an important species because it shows us the sheer variety of life able to emerge when animals were a blank slate, starting with little more than disc-shaped bacterial colonies that evolved very primitive organs for filter-feeding. Who knows what they could’ve become had they managed to survive and their ancestors branched out, undergoing billions of years of change. What would a planet dominated by the direct descendants of such predators look like? Certainly very alien.

Just think about that for a minute. Consider that this spiny, eldritch thing really existed and what you would think were you to come across it today, and compare it to UFOlogists’ declarations of alien life that looks like really skinny gray humans with bug eyes and big heads. Of all the forms life has taken even here, on our home world, an alien planet around a distant star, with its own environment and evolutionary history managed to produce another intelligent life form which by sheer coincidence just so happens to look like us? It’s absurd! Who says there is a limit to how many appendages an intelligent life form could have? As long as it’s clever enough to build the shelter it needs and harvest the resources it requires, it has the potential to mull other life on all the worlds across its night sky, and maybe even build a ship to explore beyond its own world. If anyone tells me that he has seen aliens and they look like us post-nuclear apocalypse, and with a penchant for nudism, excuse me if I point at Cambrian fossils and scoff at such a notion.

ufo vector

Different people who want Hillary Clinton to win the presidency in 2016 want her to win for many different reasons. Some believe that a female president is long overdue. Others, believe that of all the presidential contenders, she is the most electable. Yet others dislike her greatly, but with some complicated political calculus arrived at the conclusion that her ability to nominate four of the future Supreme Court justices makes her the only choice that won’t plunge the country into despotic arch-conservatism. But others still couldn’t care less about any of that because such, can we say, earthly, concerns are trivial to them. You see, to them, the most important part of a potential second Clinton administration is that they’ll finally get access to all the top secret files detailing our ongoing contact with alien civilizations. You know, after the last great reveal of our apparent alien alliances failed to materialize in 2012 as predicted, I started losing hope that an alien that’s been taken to our leaders will address the world, but hot damn! Another chance!

As said many times before and will say again, there’s absolutely nothing in the laws of biology that prevents an alien species on another planet from becoming intelligent, building spacecraft when their civilization is advanced enough, and exploring the cosmos, eventually making it to a little blue planet around an otherwise unremarkable yellow sun in the galactic suburbs. In fact, if we run the numbers, it’s almost a certainty. But the odds of this happening with a species close enough to detect us over the last century or so are astronomical. Think of meeting aliens a little like winning the lottery. Someone is going to hit that jackpot, but the chances of it being you just as you really need the money are basically nonexistent. Still, our dedicated ufologists are totally and irreversibly convinced that aliens are among us, whether we’re secretly waging war with an extraterrestrial army on the dark side of the moon, exploring their artifacts on and around Mars, meeting in secret with their representatives, or some combination of the above, and nothing will possibly change their minds, nor will any disclosure be adequate enough.

Again, the government could tell the ufologists everything it knows and even admit to every top secret drone and stealth aircraft test it may have chosen to cover up as a UFO, which would be fascinating for aviation buffs and historians. But that’s not the narrative that ufologists on whose behalf organizations like the Paradigm Research Group advocates, want to hear. Nothing short of the plot of Stargate SG-1 or Doctor Who turning out to be a documentary will do. For them, speculative astrobiology has reinforced a faith instead of acting as a fact check and they’re just hoping for a confirmation that an alien empire doing business with humans in every government report with enough reactions, like Evangelical Christians patiently await The Rapture and take every war or earthquake as a sign of the impending end of time. Although I would argue that the former is much more plausible than the latter in the grand scheme of things, either is so unlikely that it’s probably a bad idea to base our lives on either belief. If you really want to find alien life and get full disclosure about alien contact, I’d point you to SETI rather than any politician…

alien bacteria

One of the topics that’s been prominently featured on Weird Things has been panspermia, the hypothesis that life can originate somewhere in the galaxy and spread though asteroid or comet impacts, or even forward contamination by alien spacecraft. We know that amino acids can form all on their own when certain molecules are irradiated, that some creatures can easily survive a trip though space, and there’s evidence that molecules crucial for life here may have a strong link with primordial impacts. Now, true, the theory has been abused by those who either do not understand what it actually entails, or by those who just refuse to keep up with the science and spend most of their time accusing some secret anti-panspermia cabal trying to keep them down, but overall, it’s quite sound which is why it’s still being kept in mind by astrobiologists. Or so you would think unless you go by a Scientific American blog post which says the following…

In some ways the motivation for proposing this kind of cosmic panspermia is a little dated. It comes from a time when we felt that the origin of life of on Earth was such a mystery, and such an unlikely event, that it was convenient to outsource it. Although this didn’t actually solve the real question of life’s origins, it meant that a specific origin ‘event’ could be extremely rare among the 200 billion stars of the Milky Way yet life would still show up in other places.

These days I think our discoveries about the remarkable abundance and diversity of so-called pre-biotic chemistry […] in every nook and cranny of our solar system, and even in the proto-stellar nebula of other stars and the wilds of interstellar space – swings the pendulum back to Earth. Nature seems adept at making all the pieces for life, apparently raising the odds of local bio-genesis.

How are these two thoughts connected again? I’m not exactly sure how life being very adaptable would mean that it raises the odds of Earth being its origin because we’re talking about evolution rather than abiogenesis. Caleb Scharf, the scientist who wrote the post, seems to be making the same kind of mistake many creationists do when trying to ridicule evolutionary theory by asking how life would’ve come from non-life and nothing that evolution fails to answer this question. So it’s little wonder that whatever life gets here or starts here would fill every available nook, cranny, and environmental niche since natural selection would favor their reproduction. But whether the origin of these species is on Earth or in space is more or less a toss-up if we’re considering just how well they adapted to their current environments.

Yes, we could say that it’s more likely that life originated on Earth because space is vast and the odds of enough comets and asteroids hitting the planet at just the right conditions for life to take hold are astronomical, literally, so it makes sense to look for an explanation that makes life more likely to arise here. That explanation may not be right, but we don’t have a complete picture of how it came to be and so we’re still trying to find viable ideas that seem to fit the evidence we’ve observed so far. But an important part of the process is not to discard hypotheses without any evidence that they simply don’t fit with the observations, something that Scharf does with an odd certainty about the habitability of promising places in the solar system by hearty microorganisms that should dominate the universe based on the way natural selection works.

But the problem, and the potential paradox, is that if evolved galactic panspermia is real it’ll be capable of living just about everywhere. There should be [organisms] on the Moon, Mars, Europa, Ganymede, Titan, Enceladus, minor planets and cometary nuclei. Every icy nook and cranny in our solar system should be a veritable paradise for these ultra-tough life forms, honed by natural selection to make the most of [the] appalling conditions. So if galactic panspermia exists why haven’t we noticed it yet?

He then goes on to answer his own question by saying that we probably haven’t looked all that hard in all these places, don’t know for what we’re really looking, or possibly both, and ponders would it would mean if we kept searching and found nothing. You can tell that he’s really pushing for the Earth-centric explanation and again, as elaborated above, I can see why, but his primary reason for pushing it seems to be based on a very strange confusion between abiogenesis and natural selection with no facts to back it up. The argument seems to be: we know more extreme organisms on Earth, natural selection seems to be doing it’s job, we haven’t explored all of the promising candidates for life in our solar system in sufficient detail and we don’t really know what we’re trying to find and how we’ll know we found it, therefore, life arose on Earth. Doesn’t seem like a scientific train of thought to me, especially with all the evidence that there was at least an important role being played by organic matter or microorganisms from space…

Unless you’ve completely avoided the web for the last day or so, you know that SETI’s radio telescope array is mothballed for the foreseeable future and the project’s funding is drying up. Maybe we can compose some sort of Hitchhiker’s Guide style message for aliens, like "hello, thank you for calling Earth. We currently don’t have the budget to take your call, but please leave a message and the coordinates of a star system where we can contact you and we’ll return your call as soon as we raise the cash?" Would an alien be willing to leave an interstellar equivalent to voicemail? But I digress. This turn of events is a real shame and it’s unfortunate that just as we’re finding planet after planet that may be a viable habitat for something that may possibly evolve an abstract, elaborate intelligence and want to find other life like it in the galaxy, we’re shutting off the very devices we’ve created to catch their attempts. The Allen Array’s $2.5 million annual price tag isn’t even that huge of an expense if we put it in perspective, but unfortunately, the far-reaching and highly speculative nature of what it’s intended to do puts it among the first projects to be on the chopping block when finding runs a little low.

Hold on a second, you might say, didn’t you do a whole bunch of posts saying that it would be very hard to get anything out of signals sent by alien creatures? Didn’t you go into detail about why our first attempts at some sort of a conversation with extraterrestrials will more than likely fail, both in simple signals and mathematical codes? So why would you care about SETI getting an axe if intelligent alien life forms are rare and the odds of two intelligent alien creatures close enough to each other to truly talk are astronomically negligible? Yeah, in the grand scheme of things whether we try to get an alien signal tomorrow or next century matters very little as far as the universe is concerned, but the sooner we start searching and the more we search through the vast real estate out there, the sooner we can find something amazing or tantalizing. And while we can look for any communication directed towards us, we can also use the Allen Array to listen in on signals that aren’t meant for us either, just stray blips on the radar like the Wow! Signal which may be an indirect sign that there’s either something out there or we discovered a new cosmic phenomenon. To say that we have all the time we want, and delaying the process of actually listening and searching is inexcusable procrastination given the fact that all we really want is a sign that there’s intelligent life out there and even the most mysterious and convoluted communication we could never translate would be a life altering event just by virtue of its existence.

There are moments in human history when something so momentous happens that we can look back at all recorded time and legitimately split all of our existence into years before that moment and the years after that moment. Right now we do it with religious milestones and ancient legends, while we could really be doing it with the first city state, the first nation, the first great monument, the first ship, and of course, the first human in space and the first human to walk on another world. Finding iron-clad proof of alien life would be one of those history-splitting moments because it will mark the point in our history when we didn’t just have a good guess that we weren’t alone, but know it for a fact. And the longer we wait for it, the longer we hem and haw about an otherwise small amount of money required for it, the longer it will take to get there and the more likely it is that we may miss a once in a thousand year opportunity to catch that elusive signal. We didn’t have to build cities, learn how to fly, and go to the Moon. But we did. When those milestones happened was of little consequence to the flow of time. Another arbitrary date here or there is no big deal after all. But why do it later rather than as soon as we can? Why drag our feet and suggest we postpone every lofty goal until the world is just perfect for the accomplishment in question? We have SETI now. So let’s help them out and use its tools now rather than at some indeterminate point in the future when and if we run out of reasons to put it off!

Last week, we covered the concept of stealthy aliens guarding their natural resources from big, bad invaders who could make mincemeat out of their defenses and pillage their holdings to fuel whatever immense horde they have to feed and supply. But even though I said that it was highly unlikely given the resource glut of the typical solar system, it’s not inconceivable, and some informed speculation from Dr. Ian O’Neill prompts me to revisit the topic of alien invasions to ask whether we should take Hawking’s words on the subject to heart and live with some fear of being invaded by armies of little green men. Maybe a little paranoia would go a long way and pay major dividends in the end. After all, our entire space program exists because two superpowers’ military resources made it possible and we don’t go around decrying the internet, microwaves, and GPS as a waste of time and cash because they were never used for their intended purpose: as tools in a war between two of the world’s largest and best funded militaries armed with nuclear warheads on ballistic missiles. How much will we complain if we get space hotels and vacations on Mars by preparing for an alien invasion?

Of course this isn’t to say that we should look at our defense establishments as clairvoyant or assume that a space program is only possible with military involvement. The reason why they were and are still involved in matters concerning space has to do with the size of their budgets and their overarching mission of look for a potential threat in just about anything. Having a somewhat paranoid mindset and a large budget to tinker with some seemingly outlandish ideas does yield some interesting out-of-the-box thinking and prototypes for the kinds of things today’s risk averse and numbers-driven research institutions won’t even consider. It’s how the generals in both the USSR and the U.S. decided that launching humans in space was an interesting and viable idea, committing some of their substantial resources to human space travel, while wondering what it would take to assemble a citadel on another world just to keep an eye on their rivals. We can certainly bring up the human cost of the Cold War, but there’s no question that humans seem to be at their most ingenious when planning for conflict. With a potential alien invasion in mind, pretty much any idea may be viable and all sorts of interesting new research avenues might just be opened, yielding new technologies with a number of uses in the civilian world, from power generation, to manufacturing, to medicine.

Hold on a second though. How could we ever afford to prepare for an event as unlikely as a war with aliens if we live in an era of gaping budget deficits and there’s widespread poverty around the globe? And realistically, strictly speaking, we couldn’t devote a whole lot of time and effort to this, though we could also say that aliens really won’t care about our fiscal situation or vaccination and literacy rates in developing nations if they were to attack. However, we can use some cash buried in weapon development programs and used on redundant or needless projects and invest it in those which yield weapons capable of doing damage in space. As noted a while back, our conventional missiles and bombs won’t work in a vacuum, so we’d need to further develop kinetic impactors, lasers, and railguns, weaponry that is suitable for an orbital dogfight and also delivers a lot of damage down here on Earth. More complex things like armed, crewed spacecraft capable of long trips into the solar system are going to be more complex to pull off, but they are very likely to be just militarized versions of civilian space stations made by the same companies busy planning orbital hotels, and the technology they will require could then be channeled right back into the space tourism industry to build new, bigger, and more reliable space hotels and research stations. Though depending how heavily the military craft in question can be armed could be governed by the Outer Space Treaty which forbids orbital WMDs.

Now I can already hear the biggest objection of them all to this concept. Why militarize space? Why not simply explore it rather than take our wars to yet another place? One of the biggest hurdles to the idea of a peaceful, space-faring human species of the future is our nature. If we start settling space, we will declare territories or outposts as our property and there will be debates and clashes over who owns what. Treaties will have to be rewritten, new legal frameworks will have to be put into place, and all those claims will have to be enforced by something and that something is more than likely going to have to be the threat of military intervention. And as long as we have humans who think that because an unarmed territory just means that they can waltz on it and claim it as their own, we’ll have a need for militaries. But of course there’s a little more to it than that. If there’s alien life in our solar system, it’s most likely in forms that can’t harm us, trapped under the ice of moons that orbit gas giants, or very hearty, radiation-resistant bacteria on Mars. Were we to try and reach beyond, to an extrasolar world which might be habitable, our probable plan for the trip would have to involve weapons just in case there’s some sort of confrontation. Even if we go with the best intentions, we could stumble into a very paranoid and highly militarized species ready to attack anything that moves, and we need to be ready. It’s not realistic to ascribe to messianic UFOlogy when we know that space is often a very harsh place, and assume that the aliens we might encounter will be docile and ready to share their knowledge with us…