Did you know? a Gamma Ray Burst (GRB) hits close enough to earth, the ozone layer would be obliterated and if it hits earth directly, it will most likely kill all life. (Except some deep sea critters and creatures) Not instantly, but in some time.

GRB occur when a distant star turns into a supernova letting out a massive amount of energy.

Also the run was good for me, but could've been better.

Edit: GRB doesnt occur only on distant stars.