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Originally posted by Jill89
There are more elements (or at least I think) than we have here on Earth, so why don't we consider that? We are constantly looking for "Earth-like" planets, but Earth cannot be the only possessors of all elements and substances in the universe like scientists seem to make it.
Originally posted by karen61560
reply to post by foodstamp
Thats not a life form thats energy. Lifeforms have substance.
they live they eat they respire they eliminate waste. They dont twinkel like stars.
Originally posted by schuyler
Originally posted by Jill89
There are more elements (or at least I think) than we have here on Earth, so why don't we consider that? We are constantly looking for "Earth-like" planets, but Earth cannot be the only possessors of all elements and substances in the universe like scientists seem to make it.
We DO consider that. It's just that it isn't a priority. Just saying there may be life based on argon instead of carbon is beyond theoretical and doesn't make it so. If you want to speculate on what argon-based life is like, go ahead. Science fiction writers certainly do.
We're looking for "Earth-like" planets for two basic reasons. One is that life there might resemble our own, i.e.: Be reconizable. The second reason is that we're not just looking for life. We're looking for a place to go where we can survive. Concentrating on gas giants because they might harbor some sort of life we can't even recognize is not time well-spent. If we ever find a planet that is earth-like, in the Goldilocks Zone, and is roughly the same size as Earth (most are much bigger so far), and relatively close, you can bet we'll put all our attention on that planet.
We're cataloging every gas giant found. Indeeed, every planet no matter what its characteristics. But the ones we are concentrating on are Earth-like for good reason.
Planetary habitability is the measure of a planet's or a natural satellite's potential to develop and sustain life. Life may develop directly on a planet or satellite or be transferred to it from another body, a theoretical process known as panspermia. As the existence of life beyond Earth is currently uncertain, planetary habitability is largely an extrapolation of conditions on Earth and the characteristics of the Sun and Solar System which appear favourable to life's flourishing—in particular those factors that have sustained complex, multicellular organisms and not just simpler, unicellular creatures.
In February 2011 the Kepler Space Observatory Mission team released a list of 1235 extrasolar planet candidates, including 54 that may be in the habitable zone.[20][21] Six of the candidates in this zone are smaller than twice the size of Earth.[20] A more recent study found that one of these candidates (KOI 326.01) is in fact much larger and hotter than first reported.[22] Based on the findings, the Kepler Team estimated there to be "at least 50 billion planets in the Milky Way" of which "at least 500 million" are in the habitable zone.
Originally posted by Jill89
Wouldn't life of some sort be on any planet? Or could it? I mean we survive with the help of water, air, etc.. Wouldn't other species (for lack of a better word) on their planets ADAPT to what is available to them?
Wouldn't they evolve?
Anyone picking up what I'm putting down?
There are more elements (or at least I think) than we have here on Earth, so why don't we consider that? We are constantly looking for "Earth-like" planets, but Earth cannot be the only possessors of all elements and substances in the universe like scientists seem to make it. Or at least that is how it comes off to me.
~Disclaimer- these are only my opinions**** share yours!
Be nice
Originally posted by Human_Alien
Every planet/celestial body in the Universe does contain life. They are all inhabited. .
Originally posted by Jill89
Wouldn't life of some sort be on any planet? Or could it?
Originally posted by ItDepends
Originally posted by Human_Alien
Every planet/celestial body in the Universe does contain life. They are all inhabited. .
Hey H_A! Really, not looking for an arguement, but, EVERY-planet/celestial body in the Universe does contain life?
Just for starters: Our Sun, a celestial body, right? Life, I don't think so. Our moon? I don't think so. Just sayin'
Peace!! ID