Viking found organic compounds on Mars in 1976

Viking Found Organ­ics on Mars, Exper­i­ment Con­firms : Dis­cov­ery News:


Using Mars-like soil tak­en from Ata­ca­ma Desert, a study con­firms Mars has organ­ics, and Viking found them.

A reanaly­sis of Mars Viking exper­i­ments shows the probes did find organ­ics.
The result was not ini­tial­ly under­stood due to the strong oxi­da­tion effects of a salt in the Mars soil known as per­chlo­rate.
A fol­low-up study on per­chlo­rate-enhanced soil sim­i­lar to what’s found on Mars revealed fin­ger­prints of com­bust­ed organ­ics.
The Viking 1 Lan­der, illus­trat­ed in this mod­el, touched down on the west­ern slope of Mars’ Chryse Plani­tia (the Plains of Gold) on July 20, 1976.

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