Space Survival

You are on a routine mission harvesting ice from asteroids, when suddenly your ship is hit by a high speed one and destroyed! Luckily you were outside of the ship when it happened.. Or was that luck? Now you are stranded in space alone! How long can you survive? You do have your grenade launcher and ice collecting gear and you can use the ice to power your life support, maybe you can even find some power ups from pieces of your old ship.. Just watch out for black holes!