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  2. Viking 1 - Wikipedia

    en.wikipedia.org/wiki/Viking_1

    Viking 1 was the first of two spacecraft, along with Viking 2, each consisting of an orbiter and a lander, sent to Mars as part of NASA's Viking program. [2] The lander touched down on Mars on July 20, 1976, the first successful Mars lander in history.

  3. Viking program - Wikipedia

    en.wikipedia.org/wiki/Viking_program

    Viking 1 entered Mars orbit on June 19, 1976, with Viking 2 following on August 7. After orbiting Mars for more than a month and returning images used for landing site selection, the orbiters and landers detached; the landers then entered the Martian atmosphere and soft-landed at the sites that had been chosen.

  4. List of missions to Mars - Wikipedia

    en.wikipedia.org/wiki/List_of_missions_to_Mars

    Entered Mars orbit on 19 June 1976. Titan IIIE Centaur-D1T: Viking 1 lander Lander Successful First successful Mars lander. Deployed from Viking 1 orbiter. Landed on Mars on 20 July 1976. Operated for 2245 sols. 23 Viking 2: Viking 2 orbiter 9 September 1975: NASA United States: Orbiter Successful Operated for 700 orbits. Entered Mars orbit on ...

  5. Remembering NASA's Viking 1 and the first images from Mars - AOL

    www.aol.com/news/2014-08-20-viking-1-and-the...

    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 ...

  6. Mars landing - Wikipedia

    en.wikipedia.org/wiki/Mars_landing

    In 1976 two American Viking probes entered orbit about Mars and each released a lander module that made a successful soft landing on the planet's surface. They subsequently had the first successful transmission of large volumes of data, including the first color pictures and extensive scientific information.

  7. Viking lander biological experiments - Wikipedia

    en.wikipedia.org/wiki/Viking_lander_biological...

    In 1976 two identical Viking program landers each carried four types of biological experiments to the surface of Mars. The first successful Mars landers, Viking 1 and Viking 2, then carried out experiments to look for biosignatures of microbial life on Mars. The landers each used a robotic arm to pick up and place soil samples into sealed test ...

  8. List of landings on extraterrestrial bodies - Wikipedia

    en.wikipedia.org/wiki/List_of_landings_on...

    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: Contact lost at landing. Viking 1 lander: USA: 20 July 1976

  9. Timeline of space exploration - Wikipedia

    en.wikipedia.org/wiki/Timeline_of_space_exploration

    Mars 2: 2 December 1971: First soft landing on Mars. First signals from Martian surface. First photograph from Martian surface. USSR Mars 3: 3 March 1972: First spacecraft on a trajectory out of the solar system. First spacecraft to use all-nuclear electrical power (SNAP-19 RTGs). USA (NASA) Pioneer 10 [29] 15 July 1972: First spacecraft to ...