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Mars 6
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Mars 6
Mars 6 Mission to Mars

Goals: Like its sister mission, Mars 7 (which arrived at Mars three days earlier but failed to deliver its lander) Mars 6 was intended to place a lander on Mars. The bus was to fly by the planet, taking measurements as it passed.

Accomplishments: The descent module transmitted 224 seconds of data-the first data returned from the Martian atmosphere-but much of it was unreadable because of a flaw in a computer chip. Contact was lost moments before the presumed landing. The bus that delivered the lander to Mars transmitted scientific information during its brief flyby of the planet.

Key Dates
5 Aug 1973:  Launch
12 Mar 1974:  Lander Descent to Martian Surface
Status: Unsuccessful
Fast Facts
Mars 6 Facts Mars 6 returned the first data from the Martian atmosphere, though most of it was unreadable.

Data on the Mars atmosphere prompted redesign of an American Viking spacecraft instrument. The data was later found to be incorrect.

Mars 6 may have landed safely, but contact was lost before confirmation.
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Last Updated: 30 Nov 2010