[DOC] [TLE] NASA First Invaded Red Planet with Viking Mars Landing - Space.com [PAR] Jul 22, 2011 ... The craft that landed July 20, 1976, the first of many visitors to Mars, had been 
designed to work for 90 days, but it continued gathering data for... [DOC] [TLE] Viking 1 - Wikipedia [PAR] Viking 1 was the first of two spacecraft (along with Viking 2) sent to Mars as part 
of NASA's Viking program. On July 20, 1976, it became the first spacecraft to land 
successfully on Mars... [DOC] [TLE] Viking Lander 20th Anniversary - 20 July 1996 - nssdc - NASA [PAR] Douglas Isbell Headquarters, Washington, DC July 15, 1996 (Phone: ... OF 
FIRST MARS LANDING Twenty years ago, on July 20, 1976, the Viking 1 lander
... [DOC] [TLE] Viking 1 & 2 - Mars Home - NASA [PAR] Orbiters Launch: August 20, 1975 (Viking 1); September 9, 1975 (Viking 2) Arrival
: June 19, 1976 (Viking 1); August 7, 1976 (Viking 2). Landers Landing: July 20... [DOC] [TLE] Viking I :Mars Landing, July 20, 1976 - YouTube [PAR] Jul 20, 2010 - 5 min - Uploaded by mars2057On July 20, 1976, the Viking 1 spacecraft landed on Mars to end a 500 million- mile journey ... [DOC] [TLE] July 20, 1976: Landing on the red planet  Spaceflight Now [PAR] Jul 20, 2016 ... Today marks the 40th anniversary  July 20, 1976  of the first U.S. robotic 
landing on another planet by the Viking 1 spacecraft on Mars. [DOC] [TLE] July 20, 1976: Viking I Lands on Mars Video - ABC News [PAR] Mar 31, 2010 - 3 minNASA's unmanned Viking I spacecraft takes pictures of Mars' rocky surface. [DOC] [TLE] Viking 1 lands on Mars - Jul 20, 1976 - HISTORY.com [PAR] On this day in History, Viking 1 lands on Mars on Jul 20, 1976. Learn more about 
what happened today on History. [DOC] [TLE] Viking Lander | California Science Center [PAR] The first spacecraft ever to land successfully on Mars. ... Mars arrival date: July 20
, 1976 (Viking 2 arrived Sept. 3, 1976). Launch mass: 572 kilograms (1,261... [DOC] [TLE] July 20, 1976  first successful Mars orbiter/lander missions, Viking ... [PAR] Jul 20, 2007 ... July 20, 1976  first successful Mars orbiter/lander missions, Viking 1 and 2 ... 
Landing on Mars was planned for July 4, 1976, the United States... [DOC] [TLE] The First Successful Mars Landing Happened 35 Years Ago Today [PAR] Jul 20, 2011 ... At 8:51 UT July 20th, 1976, the Viking 1 lander separated from its ... hours it 
would become the the first spacecraft to successfully land on Mars... [DOC] [TLE] Viking | space probe | Britannica.com [PAR] Viking 1 landed in Chryse Planitia (22.48 N, 47.97 W) on July 20, 1976; Viking 
2 ... The final Viking data was transmitted from Mars (from the Viking 1 lander) in... [DOC] [TLE] Project Viking Fact Sheet - Views of the Solar System [PAR] Viking was the culmination of a series of missions to explore the planet Mars; 
they ... The team examined nearby sites, and Viking 1 landed on July 20, 1976, 
on... [DOC] [TLE] Today in science: 1st Mars landing | Space | EarthSky [PAR] Jul 20, 2016 ... First photograph ever taken from Mars' surface, by Viking 1 shortly after it landed 
on July 20, 1976. One of the lander's footpads is seen at the... [DOC] [TLE] Missions to Mars | The Planetary Society [PAR] Its cameras are also helping in the search for landing sites for future Mars rovers 
and landers, and to monitor martian weather on .... Mars landing: July 20, 1976. [DOC] [TLE] Viking I Lands - Viking Mars Missions Education and Preservation [PAR] On July 20th 1976 Viking I successfully landed on Mars western Chryse Planitia (
"Golden Plain") at 22 224149N 481319W / 22.697N 48.222W. [DOC] [TLE] NASA Marks 40 Years of Viking 1 Mars Landing - VOA News [PAR] Jul 20, 2016 ... First image

Question: It landed on Mars on July 20, 1976
Answer: Viking