Quote:
|
Originally Posted by alxfamlaw
I have seen this on several sites and wonder if it is true, and if so, what does it mean for us on earth?
|
Were this true, we would be in deep trouble. A typical G2 star like this sun in Red Giant phase would extend
out to just past the orbit of Mars. Titan could then become a temprate climate of methane and ammonia.
Actually, recent estimates for the sun is somewhere in the neighborhood of about 3 or more billion years or
so...
Of course not all is known of what else can make the sun unstable than running out of fuel (H). If
you can find it there was a show on the Science channel where the actor Neil (I forget?) did a great series
on the future of the sun and planets.
Maddog
