Despite never landing on the moon, Apollo 13 is one of the most notable spaceflights in history. An explosion on the Apollo 13's service module put the lives of its three crew members in peril. And despite all odds, the astronauts were able to keep the ship functioning until safely touching down on Earth. 25 years later, Ron Howard directed a largely accurate film version of the near-fatal mission. To celebrate the mission's 50th anniversary, Apollo 13 will return to theaters on April 5th, 6th and 8th.