Justice League of America #202 Newsstand

STAR FALL An accident occurs while Batman is performing extra-vehicular maintenance on the JLA satellite, causing Hawkman to summon the other members to effect repairs, and sending an unconscious Batman drifting into space. Attempting to retrieve him, the heroes find he has been rescued by a gigantic alien automated medical ship, whose computer-sensors have mistaken him for an explorer-member of the extraterrestrial race which created it, and which has healed his injuries, transforming him into a mentally deranged double of the alien explorer, Ursak.   The now-bestial Batman battles his comrades, until Hawkman overcomes him and has the medical ship return him to normal. In the course of his investigations, Hawk-man discovers that the alien ship has been awaiting Ursak's return for some 200,000 years in the wrong location, due to a flaw in its navigation computer; he corrects the error, and the ship departs.