S.L.I.M.E. (Surface-Living Intelligent Multiplying Endolith) was one of the main adversaries of S.P.A.C.E. and the Intergalactic Council. This monstrous creature has overrun and destroyed countless planets, devouring all in its path. Alienology was written by Alpha "Allen" Gray to find new human recruits to aid in the fight against it. S.L.I.M.E. was brought back to Earth by Neil Armstrong and Edwin Aldrin of Apollo 11, but Human DNA has proven the cure to its menace.