Apollo 11 and Apollo 12 were successful. Space travel began to feel like a routine event. That ended in April 1970 with Apollo 13. The spacecraft was rocked by a small explosion two days into its mission. Astronauts Jim Lovell, Fred Haise, and Jack Swigert spent four days struggling to return to Earth. Here is Mission Control in tense moments before the astronauts splashed down in the Pacific Ocean.| From Earth to the Moon ... and Back | Kids Discover
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