Damage to Apollo 13 . ... Credit Copyright: . Credit Apollo 13 Crew , NASA Explanation: In April of 1970 , after an oxygen tank exploded and crippled their service module, the Apollo 13 astronauts were forced to abandon plans to make the third human lunar landing . The extent of the damage is revealed in this grainy, grim photo , taken as the service module was drifting away -- jettisoned only hours prior to the command module's reentry and eventual safe splashdown. ...