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The Voyager 1 spacecraft is a 722-kilogram robotic space probe of the outer solar system and beyond, launched September 5, 1977, and currently operational. It visited Jupiter and Saturn and was the first probe to provide detailed images of the moons of these planets.

Voyager 1 is the farthest human-made object from Earth, traveling away from both the Earth and the Sun at a relatively faster speed than any other probe. Though its sister-craft, Voyager 2, was launched one month earlier, Voyager 2will never pass Voyager 1. Neither will the New Horizons mission to Pluto, despite being launched from Earth at a faster speed than both Voyager craft, since during its flight Voyager 1 benefited from a number of gravity assisted speed boosts.

As of December 7, 2007, Voyager 1 is over 15.67 terameters (15.67×1012 meters, or 15.67×109 km, 104.7 AU, 14.52 light-hours, or 9.79 billion miles) from the Sun, and has thus entered the heliosheath, the termination shock region between the solar system and interstellar space, a vast area where the Sun's influence gives way to the other bodies in the galaxy.

Check out the Voyager Project website at: http://voyager.jpl.NASA.gov

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15y ago

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