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"On This Day" In Engineering History

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February 3rd, 1966 – Luna 9 Makes First Soft-Landing on the Moon

Posted February 04, 2008 12:00 AM by Sharkles

Yesterday in engineering history, the Soviet Luna 9 was the first spacecraft perform a soft-landing on the moon and transmit photographic data back to Earth. The craft was dropped by a cylindrical mother craft, which was destroyed after achieving its purpose. The Luna 9 landed in the Ocean of Storms (Oceanus Procellarum), the western edge of the Earth's moon.

The station itself was a hermetically sealed, 99kg container. Contained inside was radio equipment, a program timing device, heat controlled systems, scientific apparatus, power sources, and a television system. Upon landing, the petals that comprised the Luna 9, opened and stabilized on the Moon's surface. Once the station was opened, spring-controlled antennas moved into position, while the television camera began surveying the lunar environment. When combined, the photos from the Luna 9 provide a panoramic view of the lunar surface, including rocks and the horizon 1.4km away from the spacecraft. The batteries ran out and contact with the Lunar 9 was lost on February 6th.

Although eight hours and five minutes of radio sessions and three series of televised pictures were transmitted back to Earth, they were not immediately released by the Soviets. Instead, the Jordrell Bank Observatory that was monitoring the Luna 9 noticed that the signal format used by the spacecraft was the same type internationally-agreed system used by newspapers for transmitting pictures. A British newspaper, The Daily Express, sent a receiver to the Observatory and published the photos world-wide.

Luna 9 was another Soviet victory against the United States in the space race. The successful landing of the Luna 9 came after twelve previous attempts of a soft-landings. The victory marked the beginning of the Lavochkin Design Bureau, who would ultimately design and build almost all Soviet and Russian spacecrafts.


Resources:
http://apod.nasa.gov/apod/ap970907.html
http://nssdc.gsfc.nasa.gov/nmc/masterCatalog.do?sc=1966-006A
http://en.wikipedia.org/wiki/Luna_9


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Previous in Blog: January 31, 1958 – Explorer 1: America's First Satellite   Next in Blog: February 8th, 1855 – The Devil’s Footprints
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