Thirty Years After: The Science of the Viking Program and the Discovery of a “New Mars”
نویسنده
چکیده
On June 19, 1976, the Viking 1 Orbiter achieved orbital insertion around Mars. On July 20, the Viking 1 Lander soft-landed on the surface of Mars in the Chryse Planitia (22 degrees north, 48 degrees west) becoming the first human-made object to land on Mars. The Viking 2 Orbiter achieved Mars orbital insertion on August 7. On September 3, the Viking 2 soft-landed in Utopia Planitia (44 degrees north, 226 degrees west). By September 3, four Viking Mars spacecraft—two in orbit and two on the surface, were simultaneously collecting new and previously unobtainable data and transmitting that data back to Earth.
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