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The twin spacecraft Voyager 1 and Voyager 2 were launched by NASA in separate months in the summer of 1977…

After a seven-month cruise to Mars and six months of aerobraking to reach its science orbit, Mars Reconnaissance Orbiter began…

Galileo changed the way we look at our solar system. When the spacecraft plunged into Jupiter’s crushing atmosphere on Sept.…

Explorer 1 was the first satellite launched by the United States when it was sent into space on January 31,…

For more than a decade, NASA’s Cassini spacecraft shared the wonders of Saturn and its family of icy moons. It…

The Ulysses mission was an outgrowth of the abandoned International Solar Polar Mission (ISPM) that originally involved two spacecraft —…
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A satellite to study long-term climate change and short-term weather conditions, Suomi NPP continues the work of NASA’s Earth Observing…

NASA’s Stardust was the first spacecraft to bring samples from a comet to Earth, and the first NASA mission to…

NASA’s NEAR was the first spacecraft to orbit an asteroid and also was the first to land on one.