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Post Info TOPIC: Viking Lander 1 and Mars Pathfinder


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Viking 1
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Following launch using a Titan/Centaur launch vehicle on August 20, 1975 and a 10-month cruise to Mars, the orbiter began returning global images of Mars about 5 days before orbit insertion. The Viking 1 Orbiter was inserted into Mars orbit on June 19, 1976 and trimmed to a 1513 x 33,000 km, 24.66 h site certification orbit on June 21.
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RE: Viking Lander 1 and Mars Pathfinder
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Viking I :Mars Landing, July 20, 1976



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Viking 1 was launched on August 20, 1975 and arrived at Mars on June 19, 1976.
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Viking Lander 1
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Viking 1 was the first of two spacecraft sent to Mars as part of NASA's Viking program.
The Viking 1 Orbiter was inserted into Mars orbit on June 19, 1976 and trimmed to a 1513 x 33,000 km, 24.66 h site certification orbit on June 21. Landing on Mars was planned for July 4, 1976, the United States Bicentennial, but imaging of the primary landing site showed it was too rough for a safe landing. The landing was delayed until a safer site was found. The lander separated from the orbiter on July 20 08:51 UT and landed at 11:53:06 UT. It was the first attempt by the United States at landing on Mars.

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Viking Mars landers
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Missing Piece Inspires New Look at Mars Puzzle

Experiments prompted by a 2008 surprise from NASA's Phoenix Mars Lander suggest that soil examined by NASA's Viking Mars landers in 1976 may have contained carbon-based chemical building blocks of life.
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Viking Lander 1
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Anniversary of Viking 1, Mars Landing. (1976)

Viking 1 was the first of two spacecraft sent to Mars as part of NASA's Viking program. It was the first spacecraft to successfully land on Mars and perform its mission,  and holds the record for the second longest Mars surface mission of 6 years and 116 days (from landing until surface mission termination, Earth time).
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RE: Viking Lander 1 and Mars Pathfinder
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Today is the anniversary of the Mars Pathfinder, Mars Landing. (1997)

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Viking Lander 2
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The ice exposed by fresh impacts suggests that NASA's Viking Lander 2, digging into mid-latitude Mars in 1976, might have struck ice if it had dug only 10 centimetres deeper. The Viking 2 mission, which consisted of an orbiter and a lander, launched in September 1975 and became one of the first two space probes to land successfully on the Martian surface. The Viking 1 and 2 landers characterised the structure and composition of the atmosphere and surface. They also conducted on-the-spot biological tests for life on another planet.
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RE: Viking Lander 1 and Mars Pathfinder
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This image, taken by the Mars Reconnaissance Orbiter high resolution camera, shows the approximate location of the Mars Pathfinder probe.

Credit NASA

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1997 Pathfinder Site
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NASA Orbiter Sees Details of 1997 Pathfinder Site
The high-resolution camera on NASA's Mars Reconnaissance Orbiter has imaged the 1997 landing site of NASA's Mars Pathfinder, revealing new details of hardware on the surface and the geology of the region.

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Credit: NASA/JPL/Univ. of Arizona

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