I found this interesting article on how exploding stars relate to Earth. Not only do stars explode often but this article explains how there is still a threat from expoding stars! You can find the article here
Posted: Sat May 31, 2008 6:59 am
...Did you know that our Sun will explode in some million/billion years and the Earth will be burned to a crisp and humanity will end unless we find another planet to inhabit? :D