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Archive for the ‘Cosmos’ Category

NASA announced yesterday (6/19/17) that their Kepler space telescope has found 219 new candidates for life-supporting planets in the universe. They keep finding more and more. Man, if this doesn’t give wings, no, rocket boosters, to my imagination! That said, chances that life evolved on any of these planets to a sentient point in sync with our own are infinitesimal, considering all the fits and starts it took us to get to where we are. Mass extinctions, severe climate fluctuations, natural selection, the age of our planet and solar system, things that like to eat us – from the inside and out, and so many other random factors (many would argue non-random) brought us to this exact moment.

antenna - My Favorite Martian

Uncle Martin

It took our planet 4.5 billion years to nurture a form of life that can wonder aloud about alien life and actively seek it out. And that only occurred within the very-most recent blip of time in earth’s history. There may be life on some of these planets but it’s unlikely they’ll look like Mork or Uncle Martin (there’s a reference for oldies). That life could be a billion years ahead of – or behind – our own. With regard to the former, it could be of an ilk that doesn’t reach out. Maybe it can’t. Maybe it doesn’t wanna. When you remove the carbon-based requirement for life (Hey, why not silicon?), who knows what can be out there? I’m not saying that would be the case, but I’m also not saying it can be ruled out. Many physicists are surely open to the possibility.

Now, NASA isn’t claiming that any of these planets support life of any kind. What they are saying is they are somewhat “earthish” in their size and distance from the sun. It’s something called the “Goldilocks Zone”. Because we know that our planet, of the size it is, and of its distance to the sun, does for a fact support life, a good starting point in searching for extraterrestrial life is to find planets similar to the one we know was successful in that regard. It all worked out here; why not elsewhere?

Despite these possibilities, I have difficulty believing UFOs are what some say they are. Yes, they’re “unidentified”, and they “fly”. And they’re “objects” (sometimes). But the idea that they traveled tens of thousands of years from another planet to visit us on this little mote in the universe is a bit anthropocentric (unless they’re really here to see the whales), and hard for me to imagine. Not impossible, but improbable. I do feel compelled to leave that door open a bit. To a civilization millions of years ahead of us it could simply be a coffee run. We do have good coffee on this planet – one of the perks (ugh) of the long, circuitous path of life on earth. Maybe they can fold time and space, a theory of space travel suggested by many in the field of astrophysics. The laws of physics dictate that ONLY light can travel at 186,282 miles per second (speed of light). Even if a traveler could approach that speed, at say 185,000 mps, that’s still a hell of a long trip. Bear in mind, too, that mass increases as it grows closer to light speed, adding what would seem an insurmountable challenge to the problem. Based on our current understanding of such things, folding space-time would be one of the few theoretical options left to make possible a trip from even the closest of these discovered planets. Hey, but maybe they know something different. And not to brag, but we humans do seem to figure things out over time, making possible what once seemed impossible. Maybe the whales know something (sorry, watched too much Star Trek*). But right now we humans are at the “impossible” stage.

Heady stuff…

Still, life of any kind existing anywhere off earth – even within the icy, high-oxygen seas of ┬áJupiter’s Europa, is dream fuel. And Europa we can do – we’ve already been there. How they/we will detect that life is beyond me. But one step at a time. Step one: As it’s done here on earth, find the right habitat. It seems we’re making some progress there.

So why do I care about humans finding something I will likely never see? As a naturalist, I spend a lot of time seeking out living things here on earth; fauna and flora I’ve never seen or heard before. There’s something about discovering another living thing that took a different life path to get to where it is now. We share a planet, an atmosphere, the victories (for now) over all of earth’s fits and starts mentioned above, and the chemical building blocks of life – DNA. I’m grounded by both their differences from the human I am and the many things we share. Every new thing I find gives an answer, but better yet, asks two more questions! It’s the questions that keep us moving forward. Expanding that search into the cosmos seems a natural extension. We don’t share a planet, but a universe. We share the same stuff that makes up all matter in existance. Will that bring us answers? No doubt. Will it bring even more questions? How can it not! I don’t care if it’s a single celled organism or endoparasitic xenomorphs. Just as I take tremendous armchair satisfaction in knowing there are places on earth teeming with life that I will never see, knowing life can exist elsewhere else in the universe is enough for me. (I do hope they’re not endoparasitic xenomorphs)

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One of those xenomorphy thingys

Again, I think the chances of hearing from representatives of some cosmic community are slim – at least in my lifetime, and likely that of my children’s children.

But a haystack can surely hide a needle. And if one looks long enough…

*A good read! “The Physics of Star Trek” Lawrence M. Krauss

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