Also, the existence of life (intelligent and otherwise) does not rule out the validity of God and Christianity - it simply affirms that God is capable of pleasantly surprising with His magnificent creative power.
frwl wrote:"How a planet was born amidst these competing gravitational forces will be a challenge for planet formation theories."
I still like the theory that says that God put them all there and guides their paths
With a single sun of our Sun's size and temp, maybe. But then, there are also environments on our planet where bacteria and other life don't rely on sunlight, but on chemicals pouring from vents in the earth, underwater.Ultra Magnus wrote:I haven't read through the whole article from the first link, but in answer to oro!girl7's question about life on the planets, it's probably not likely, because:
- the planets are past 3 Astronomical Units. Life is most likely to exist from 0.95 to 1.15 AU (as you can see it's a very fine range).
We don't have the technology to detect much smaller than gas giants when they're so far away. There may well be millions of Earth sized planets throughout that 3 star solar system-- but we can't detect them currently, if I understand correctly.- the planets are gas giants. They do have atmospheres, but probably ones unlike earth's and therefore not good for life. You'd want the kind of atmosphere that carbon based lifeforms can survive in, and though my chemisty is shocking, i think it's relatively safe to say that most gas giants have either hydrogen, ammonia or methane mostly in their atmospheres. You need more carbon and oxygen in them. A lot more, I think.
It'd be more complicated than our solar system, sure. But it probably has an equilibrium or stable state it settled into... or not. But I think it's possible. Besides, the farther away from the suns the planets are, the less that gravity affects them.- The three stars' combined gravity would also play havoc with the planets. It's probably safe to say that only stable star systems such as ours (where there is just one primary star, and it is neither too large or too small - thus ensuring a steady life cycle for the star) are capable of hosting life.
Arbre wrote:With a single sun of our Sun's size and temp, maybe. But then, there are also environments on our planet where bacteria and other life don't rely on sunlight, but on chemicals pouring from vents in the earth, underwater.
Arbre wrote:We don't have the technology to detect much smaller than gas giants when they're so far away. There may well be millions of Earth sized planets throughout that 3 star solar system-- but we can't detect them currently, if I understand correctly.
And again, not all life on Earth requires the same gases and chemicals as humans do.
Arbre wrote:It'd be more complicated than our solar system, sure. But it probably has an equilibrium or stable state it settled into... or not. But I think it's possible. Besides, the farther away from the suns the planets are, the less that gravity affects them.
Ultra Magnus wrote:I don't know enough about bacteria and lifeforms that don't need sunlight to survive. Would it still be fair to say that for the earth to be as it is (capable of sustaining life, even chemical vents pouring forth, etc.) the Sun is ultimately needed? Could you tell me more about this stuff, thanks.
What do you think about the possibility of life being sustained by methane or ammonia instead?
rocklobster wrote:Now how come a planet like Jupiter can get 16 moons, but we're stuck with one? I think 16 would make quite a pretty night sky. Just kidding, Big Guy in Charge, don't hit me with any lightning bolts.
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