Launched in 1977, the twin Voyager spacecraft were assigned an ambitious mission - to explore the giant outer planets.

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A space-based radar survey helped uncover ruins of the medieval settlement of Angkor, Cambodia.

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What one item would you add to a new Golden Record? Remember, it's been 30 years since the Voyagers launched.

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Explore Saturn's moon Titan with an interactive tour, which includes a 3D globe with interactive hot spots.

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The Phoenix spacecraft began its journey toward Mars aboard a Delta II rocket.

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A new slide show highlights the Cassini spacecraft's third year at the ringed world.

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Marvel at a few gems from the universe, including sparkling clusters of baby stars and the shimmery demise of a dying star.

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Icebergs, fjords, glaciers. All part of the view at Earth's poles.

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Find out how much you know about asteroids and comets that may come near Earth's neighborhood.

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Take a 360-degree virtual tour of the Deep Space Network's station in Goldstone, Calif.

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