posted on Aug, 11 2004 @ 11:07 AM
Originally posted by SpittinCobra
Cmdrkeenkid Is this true?
yeah, when the sun begins to die it'll go through several steps.
first, as it runs out of hydrogen, it'll expand to about the orbit or Earth or possibly Mars. this will happen so that helium can be fused into
carbon. eventually the sun will no longer be able to sustain this reaction and ejects about half of its mass into space. this creates the nebula,
which will last about 50,000 years. at the center of the nebula will be what remains of the star: a white dwarf star about the size of Earth.
here's a couple good examples: