74. How did the astronauts know that it would be okay to land on the Moon? (A K2S Question)
From The Space Library
Revision as of 18:13, 11 June 2014
Robotic spacecraft were sent first to learn about the Moon. There were three series of robotic spacecraft before Project Apollo. They were Ranger, Lunar Orbiter and Surveyor. Rangers 7-9 photographed the Moon up close before crashing on it. http://nssdc.gsfc.nasa.gov/planetary/lunar/ranger.html (See CDROM) http://history.nasa.gov/SP-4210/pages/Cover.htm (See CDROM) Lunar Orbiter mapped the Moon's surface from orbit. http://nssdc.gsfc.nasa.gov/planetary/lunar/lunarorb.html (See CDROM) Surveyor actually landed on the Moon to study its surface. http://nssdc.gsfc.nasa.gov/planetary/lunar/surveyor.html (See CDROM)
Answer provided by Thomas Matula, Ph.D. & Kenneth J. Murphy
Question and Answer extracted from the book Kids to Space - by Lonnie Schorer
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