"Jackie," a former NASA employee, claimed she saw two humans walking in Mars when she was watching footage from Viking Mars Lander in 1979.

The woman said the mysterious "sighting" happened during her duty. She said she saw two spacesuit clad human beings walk towards the Viking Lander on Mars. The ex-NASA employee said she was handling the downlink telemetry from the Viking lander together with six colleagues when she saw the mysterious incident.

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Multiple reports said Jackie (no family name) placed a call to Coast-to-Coast AM radio station in the US after the sighting. Her reason was to help solve the mystery that has been plaguing her for about 27 years.

"That old Viking rover was running around. Then I saw two men in spacesuits - not the bulky suits we normally used, but they looked protective. They came over the horizon walking to the Viking Explorer. The men' suits looked like space protective gear, but not what you would expect astronauts to wear," she was quoted as saying.

The Viking Explorer was the first vehicle to send back images of Mars during the 70s.

Conspiracy theorists believe Jackie's claim because it gives them more evidence that secret landings on Mars were carried out in the 60s and 70s.

Former CIA pilot John Lear previously claimed that NASA landed on Mars in 1966, and humans were able to breathe the thin Martian air.

Plasma physicist Dr. John Brandenburg has a popular theory stating that Mars was home to two ancient civilizations, which he has named Cydonians and Utopians. Dr. Brandenburg added that they were wiped out because of two nuclear explosions on the Martian surface triggered by a yet unidentified alien race.

TagsNASA, Mars, red planet, humans on Mars, Conspiracy theorists, Conspiracy theory, Cydonians, Utopians, Martian, Viking Explorer, Viking Lander, Mars landing, space exploration