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Flashback to Neptune's Moon Triton
http://www.jpl.nasa.gov/news/features.cfm?feature=2292
Flashback to Neptune's Moon Triton Jet Propulsion Laboratory August 25, 2009 Newly released images commemorate the 20-year anniversary of the Voyager flyby of Neptune's moon Triton on Aug. 24, 2009. Triton was the last solid object visited by NASA's Voyager 2 spacecraft as it headed toward the edges of our solar system. Triton, Neptune's largest moon, is one of the "coolest" objects in the solar system, literally, with a surface temperature of minus 235 degrees Celsius (minus 391 degrees Fahrenheit). Voyager 2 discovered that Triton has active geysers. The images and a movie show the moon's sparsely cratered surface with smooth volcanic plains, mounds and round pits formed by icy lava flows. The Voyagers are the farthest human-made objects in the solar system. Voyager 1 is 16.6 billion kilometers (10.3 billion miles) or about 111 Astronomical Units from the Sun. Voyager 2 is 13.5 billion kilometers (8.4 billion miles) or about 90 Astronomical Units from the Sun. Both are expected to reach interstellar space in five to eight years (2014 - 2017). More information on the Voyagers is available at: http://voyager.jpl.nasa.gov/index.html . |
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