As nuclear fuel is used up, star expands and turns red Lasts for about 100 million years When our sun is a Red Giant, it will expand and swallow up the inner planets—Mercury, Venus, Earth & Mars
As nuclear fuel is used up, star expands and turns redLasts for about 100 million yearsWhen our sun is a Red Giant, it will expand and swallow up the inner planets—Mercury, Venus, Earth & Mars