2006-09-22 06:51:57 · 8 answers · asked by cherie 1 in Science & Mathematics ➔ Astronomy & Space
about 4.5 billion years and then the sun will start to expand enough to swallow our planet. but we will die way before then anyways when the moons gets so far away from us and doesnt orbit us anymore which will cause our planet to go into a weather nightmare
2006-09-22 06:53:39 · answer #1 · answered by Al Bundy 4 · 0⤊ 3⤋
The Sun, in 4.5 billion years supposedly, WILL start to swell. It will get bigger, and en-gulp Mercury and Venus. The atmosphere will evaporate, water will melt, and life will be gone. The sun will swell enough to devour the earth, then shrink, grow, Turn into a planetary nebula, then shrink, for the last time, into a white dwarf. Then In a few billion years, cool down to a black dwarf.
The reason the sun expands, In case you want to know, Is because of its fuel supply. The energy from the sun comes from nuclear fusion of Helium. When the helium supply runs out, The sun has to fuse hydrogen, therefore making the sun swell. The sun then will Shrink, once its helium supply is restored, grow again, then cast out a planetary nebula (For what a planetary nebula looks like, Look up the ring nebula) then it wont have enough hydrogen to grow back to the normal size...and become a white dwarf. Eventually, it will cool into a black dwarf and die.
2006-09-22 15:36:46 · answer #2 · answered by iam"A"godofsheep 5 · 0⤊ 0⤋
The sun is halfway through its life span so 5 billion years approx. left. This is real information, I am researching the sun and its moons.
2006-09-22 13:57:20 · answer #3 · answered by Tiny Dancer 4 · 0⤊ 2⤋
At least a few more minutes.
Actually, I think it's supposed to be in around 4 to 5 billion years when it goes out.
2006-09-22 13:53:34 · answer #4 · answered by Kyleontheweb 5 · 1⤊ 2⤋
Until tonight.
2006-09-22 13:59:13 · answer #5 · answered by Anonymous · 1⤊ 2⤋
5 billion years more....
2006-09-22 13:54:24 · answer #6 · answered by ashwin_hariharan 3 · 0⤊ 2⤋
3 or 4 days, get your tan in..
2006-09-22 13:53:38 · answer #7 · answered by snoogans 5 · 1⤊ 3⤋
As long as God lets it!! :)
2006-09-22 13:59:11 · answer #8 · answered by *walkinthelight* 3 · 1⤊ 3⤋