its the promethian, it is an artificial life form powered by solar energy that was created to aid in the building of the infracture of some planet but it went rogue so they tied it to a metoer and sent it into space, and superman futzed with it an exposed him to sunlight which re energized him and he crash landed on earth....wow i cant believe i actually just remeber it off the top of my head like that, either im just a nerd or i got problems. coincidentally that epside will be aired later this week on boomerang network