8. Here comes the not-so-jolly galactic giant.
A neutron star is a stellar remnant that can result from the gravitational collapse of a massive star after a supernova. We don't have to get into semantics. Just understand that with a radius of about seven miles, they have a mass of about two times the size of the sun.
There isn't a single chance of survival, so just grab a good seat.
© MARK GARLICK/Science Photo Library/Corbis