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| | Spaceflight :Project Apollo |
 | | Apollos 9 and 10 were launched in early 1969 to test equipment and practice procedures for the lunar mission. |
 | | Apollo 10 astronauts Thomas Stafford, John Young and Eugene Cernan flew a “dress rehearsal” of the first lunar landing mission, with Stafford and Cernan descending to within 50,000 feet (14,240 meters) of the Moon's surface. |
 | | Apollo 13 suffered a catastrophic explosion in a Service Module oxygen tank at about the midpoint of its lunar journey on April 13, 1970, but the three astronauts, James Lovell, Fred W. Haise, and John L. Swigert, safely returned to Earth through the heroic efforts of their ground support team in Houston. |
| www.centennialofflight.gov /essay/SPACEFLIGHT/apollo/SP19.htm (1915 words) |
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