View Single Post
Old 02-22-2013, 10:54 AM   #57
Ring of Famer
ZONA's Avatar

Join Date: Jan 2006
Location: Phoenix, AZ
Posts: 10,758

Chris Harris

Originally Posted by Eldorado View Post
Not a few million. 1-3 billion. The earth will be uninhabitable somewhere in the gradual warming phase.

It says right there on the illustrationg "approx". Not all G type stars live exactly 14 billion years. Some can be shorter, say 10-12 billion years. There's no real way to say how much longer we have until the Sun starts heating up. It could be a few million, it could be a few billion. Better to estimate the lower side of things to be on the safe side.
ZONA is offline   Reply With Quote