2007-03-07 04:14:43 · 5 answers · asked by Anonymous in Science & Mathematics ➔ Astronomy & Space
we know how old the earth is from radioactive dating so we have a very good idea of how old the sun is. Knowing the sun is a main sequence star, have a very good idea of how much fuel it's burning and how long it'll last.
2007-03-07 04:33:50 · answer #1 · answered by Gene 7 · 1⤊ 1⤋
Scientists generally believe it will begin "really" dying within about 2-3 billion years. The process takes a while though. You will have time to finish college I think.
2007-03-07 13:10:13 · answer #2 · answered by Anonymous · 0⤊ 1⤋
because of looking at other suns, or stars in our galaxy and the universe, we have observed what a star does as it burns up its energy, it gets bigger and then collapses into a supernovae explosion, our sun will get bigger for 5 billion more years and then collapse and explode
2007-03-07 16:50:49 · answer #3 · answered by Adam B 2 · 0⤊ 0⤋
Click on link below and view page for info on the main sequence. It will give you a better understanding of what the science is telling us.
http://imagine.gsfc.nasa.gov/docs/teachers/lifecycles/LC_main3.html
2007-03-07 12:38:22 · answer #4 · answered by Anonymous · 0⤊ 1⤋
its just an unproven threory. we dont know how old the earth is 100% or the sun
2007-03-07 12:26:47 · answer #5 · answered by Anonymous · 0⤊ 2⤋