Infact all the planets revolving around all the stars will end like this. I dont know the reason for this, maybe because of the sun's gravitational pull. Even if this does not happen, life on earth will perish. read more
At least five separate extinction episodes have threatened life on Earth, destruction brought on by both cosmic bombardments and the planet's own internal turmoil. As recently as 251 million years ago, the Permian-Triassic extinction event annihilated 90 percent of all marine species and 70 percent of all land vertebrates [source: ScienceDaily]. read more