Missions to Moon

Missions to Moon - Ranger

Country	:	USA
Research Org	:	NASA
Mission launch	:	Launched 1961 - 1965

Ranger-1	:	Launched 23 August 1961
Ranger-2	:	Launched 18 November 1961
Ranger-3	:	Launched 26 January 1962
Ranger-4	:	Launched 23 April 1962
Ranger-5	:	Launched 18 October 1962
Ranger-6	:	Launched 30 January 1964
Ranger-7	:	Launched 28 July 1964
Ranger-8	:	Launched 17 February 1965
coration: underline;">Ranger-9	:	Launched 21 March 1965

The Ranger series of spacecraft were designed to take high-quality pictures of the Moon and transmit them back to Earth in real time.

The images were to be used for scientific study, as well as selecting landing sites for the Apollo Moon missions.

All the Ranger spacecraft were designed to head straight into the Moon and send close-range images back to Earth right up until they crashed into the surface. The cameras onboard each spacecraft were designed to provide different exposure times, fields of view, lenses, and scan rates, and they were arranged in two separate self-contained chains, each with its own power supply, timer, and transmitter.

After a frustrating series of malfunctions (these were the early days of space exploration), Rangers 7, 8 and 9 were successful. The images they sent back were 1000 times better than what could be made by Earth-based telescopes.

References
http://solarsystem.nasa.gov/missions/profile.cfm?Sort=Target&Target=Moon&MCode=Ranger

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