The Atomic Fireball.
FACT: This is fanart for the post-portal 2 fanfition, Blue Sky. This is an illistration of the opening scene, though, I lied. If it was THE opening scene, it would involve two robots getting smashed to bits and then the Space Core (Dubbed Kevin by Wheatley) getting demolished by a meteor, GLaDOS scaring the crap out of Wheatley, an THEN this. Then, it would be Wheatley getting caught by GLaDOS (NOTE: GLaDOS is called She or Her throughout the entire thing.)
FACT: This just SO HAPPENS to be one of the sources of water from whitch GLaDOS gets the coolant for the facility.
FACT: I am partway through the 7th chapter
FACT: I AM FREAKING OBSESSED WITH PORTAL 2.