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Voyager 1: How Big Is the Solar System?The big news that the spacecraft reached interstellar space on Aug. 25, 2012, after its decades-long sojourn begs the question: Just how far did it have to travel to knock on cold, dark space's door?
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Why Voyager 1's Solar System Exit Is So Hard to PredictScientists don't know what to expect at the solar system's extreme outer reaches.
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Voyager 1 Spacecraft Enters New Realm at Solar System's EdgeNASA's Voyager 1 spacecraft made the discovery as it nears the boundary of interstellar space.
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Did NASA's Voyager 1 Spacecraft Just Exit the Solar System?NASA's Voyager 1 spacecraft has met two criteria indicating it has left the solar system, the first manmade object to do so.
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Voyager 1 Probe's 35-Year Trek to Interstellar Space Almost Never WasVoyager 1's rocket only had 3.5 seconds of fuel left when it sent the probe on its way 35 years ago.
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NASA's Voyager 1 Probe Poised to Leave Solar SystemNASA's Voyager 1 probe could soon become the first manmade object to reach interstellar space.
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NASA Voyager 1 Spacecraft Nears Interstellar SpaceVoyager 1 is poised to leave our solar system behind.
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New Map of Jupiter's Volcanic Moon Io is Best One EverIo is the most volcanically active object in the solar system.
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NASA Probe Enters Unexplored 'Cosmic Purgatory' at Solar System's EdgeNASA's Voyager 1 spacecraft is traveling through a new region about 11 billion miles away from the sun.
