The Orbiting Carbon Observatory-2 will monitor carbon dioxide emissions. jhoward/NASA/JPL hide caption

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jhoward/NASA/JPL

Carbon-Sensing Satellite Prepares For Second Launch

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NASA Explores A New World: Crowdsourcing Ideas

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Nasa Bends The Rules To Get Two Rovers To Mars

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The Cassini spacecraft has been taking radar images of Titan for years now. This modified image of the Ligeia Mare, a sea on Titan's north pole, is a composite of some of those. NASA/JPL-Caltech/ASI/Cornell hide caption

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NASA/JPL-Caltech/ASI/Cornell

Scientists Observe Springtime Changes On One Of Saturn's Moons

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International Space Station Gets Espresso Machine

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Artist concept of New Horizons spacecraft. The Hubble Space Telescope is being pressed into service to help scientists look for a post-Pluto target for the space probe. Johns Hopkins University Applied Physics Laboratory/Southwest Research Institute hide caption

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Johns Hopkins University Applied Physics Laboratory/Southwest Research Institute

Sherr's Book Reveals Details Of Astronaut Sally Ride's Personal Life

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The remote HAARP facility in Alaska has 180 antennas that are used to study the ionosphere. Courtesy of Christopher Fallen hide caption

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Courtesy of Christopher Fallen

Bye-Bye To The Home Of A Favorite Internet Conspiracy Theory

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To Put Two Rovers On Mars, Scientists Had To Get Clever With Packing

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"When the rocket stops, you will be in space, there will be complete silence, you will unbuckle, you will float around" — Richard Branson Robert Leslie/TED hide caption

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Robert Leslie/TED

Is Space Tourism Finally About To Take Off?

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