2020年7月29日 星期三

Sadly NASA Forgets Its Most Amazing Missions

Viking Mission Overview, NASA

"NASA's Viking 1 and 2 missions to Mars, each consisting of an orbiter and a lander, became the first space probes to obtain high resolution images of the Martian surface; characterize the structure and composition of the atmosphere and surface; and conduct on-the-spot biological tests for life on another planet. Viking 1 was launched Aug. 20, 1975, and arrived at Mars on June 19, 1976. On July 20, 1976, the Viking 1 lander separated from the orbiter and touched down at Chryse Planitia. Viking 2 was launched Sept. 9, 1975, and entered Mars orbit Aug. 7, 1976. The Viking 2 lander touched down at Utopia Planitia on Sept. 3, 1976."

Viking Landing Sites, NASA press release 7 May 1973

"Project Viking seeks to advance significantly scientific knowledge of the planet Mars, with emphasis on determining if life once existed or is now present."

- Viking, NASA



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