DiscordantNote wrote:
Setekh wrote:
Piece of trivia; The Andromeda galaxy is currently (IE; By our observation) Undergoing catastrophic neutron burst.
It's dead, devoid of anything but the most basic forms of life.
Really? How and why is that happening?
It basically amounts to a Neutron star (the possible outcome of a collapsed star. Think a failed black hole with an escape velocity of 1/2 C) exploding for whatever reason (Colliding with another one usually, but there are apparently spacial Quakes too, but that is news to me) Which causes a massive Gamma radiation (I think it's gamma anyway) explosion.
Usually it will just sweep across a local area but every now and then one will be big enough to engulf a galaxy.
A relatively small gamma ray burst (Ten seconds) Annihilated some 98% of life on earth about half a billion years ago, to give you an example.