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By Eric Sandler On August 20, 1975 -- 39 years ago today -- NASA launched the first of two spacecraft as a part of their new Viking program and the images they captured back in the '70s and '80s ...
The lander touched down on Mars on July 20, 1976, the first successful Mars lander in history. Viking 1 operated on Mars for 2,307 days (over 6 1 ⁄ 4 years) or 2245 Martian solar days , the longest extraterrestrial surface mission until the record was broken by the Opportunity rover on May 19, 2010.
The following table is a list of successful and unsuccessful Mars landers. As of 2022, 21 lander missions and 8 sub-landers (Rovers and Penetrators) attempted to land on Mars. As of 2022, 21 lander missions and 8 sub-landers (Rovers and Penetrators) attempted to land on Mars.
The Mars 2 lander failed to land and impacted Mars. The Mars 3 lander became the first probe to successfully soft-land on Mars, but its data-gathering had less success. The lander began transmitting to the Mars 3 orbiter 90 seconds after landing, but after 14.5 seconds, transmission ceased for unknown reasons.
First man-made object on Mars. No contact after crash landing. Mars 3 lander: USSR: 2 December 1971: First soft landing on Mars. Transmission began about 90 seconds after landing. [4] Transmitted a partial image for 14.5 seconds before the signal was lost. [5] Mars 6 lander: USSR: 12 March 1974
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First successful photos from the surface of another planet (Venus). USSR Venera 9: 20 July 1976: First successful photos and soil samples from the surface of Mars. USA (NASA) Viking Lander: 26 January 1978: First real time remotely operated ultraviolet orbital observatory. USA (NASA) ESA UK International Ultraviolet Explorer: 20 November 1978
Mars One - announced in 2012, planned to land a demo lander on Mars by 2016, with a crewed landing to follow by 2023. These dates were delayed multiple times, and the project was eventually cancelled, with the company going bankrupt in 2019; Sky-Sailor – 2014 – Plane developed by Switzerland to take detailed pictures of Mars surface