Quote:
Originally posted by Menoman
Well the fact is the Sun we use is a star. Stars burn up after periods of time. When that happens the Earth freezes up just like the outter planets of our solar system and humans couldnt possibly survive.
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The freezing is the least of our worries.
Before the Sun runs out of fuel it will suddenly expand in size and become a Red Giant. Although slightly cooler it will still be using Nuclear Reactions to burn off those larger elements such as Helium. Oh there is also the small matter of this "Giant" encroaching on the Earth's orbit so ultimately swallowing us.
So we're all doomed even sooner
. Apparently we have several billion years left so no need to panic quite yet!