Re:There Probably Have Been Aliens
by sampo on Monday January 23, 2017 @02:13PM
(#13464978)
> Specifically, unless the probability for evolving a civilization on a habitable-zone planet is less than one in 10 billion trillion, then we are not the first.
Obviously, astronomy theories don't know much about these things, as the sheer number of stars with planets, and planets in the habitable zones, have come as a big surprise to everyone.
But still, can we say or guess anything about the age distribution of these stars and planets, compared to our earth and sun? Is our sun among the oldest or youngest of those stars which have earth-like planets?
Obviously, astronomy theories don't know much about these things, as the sheer number of stars with planets, and planets in the habitable zones, have come as a big surprise to everyone.
But still, can we say or guess anything about the age distribution of these stars and planets, compared to our earth and sun? Is our sun among the oldest or youngest of those stars which have earth-like planets?