Action Comics #589 1987

Action Comics #589, published by DC in June 1987, features "Green on Green." Superman, discovered adrift in space by Arisia, joins the Green Lantern Corps to confront a colossal bio-mass. This entity, a remnant from a previous encounter, is ultimately transformed by their combined power into a new home for the alien Therils. The issue is notable for this significant Superman/Green Lantern Corps team-up, a Phantom Stranger cameo flashback, and a memorial to Gardner Fox.