A SpaceX Falcon 9 rocket on the launch pad at Launch Complex 40 at Cape Canaveral Air Force Station, Florida.

September 19, 2014

NASA's ISS-RapidScat Launch Scrubbed by Weather

Because of weather conditions, SpaceX has postponed its planned launch of its Falcon 9 rocket carrying the Dragon spacecraft and JPL's ISS-RapidScat.

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ISS-RapidScat will have a close-up view of ocean winds from its perch

September 18, 2014

Five Things About NASA's ISS-RapidScat

Five rapid facts about NASA's RapidScat mission to monitor ocean winds, scheduled for launch to the International Space Station on Saturday, Sept. 20.

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NASA's MAVEN spacecraft

September 17, 2014

NASA Mars Spacecraft Ready for Sept. 21 Orbit Insertion

NASA's Mars Atmosphere and Volatile Evolution (MAVEN) spacecraft is nearing its scheduled Sept. 21 insertion into Martian orbit after a 10-month interplanetary journey.

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Artist concept of NASA's Dawn spacecraft orbiting Ceres during an upcoming flyby.

September 16, 2014

Dawn Operating Normally After Safe Mode Triggered

The Dawn spacecraft has resumed normal ion thrusting after the thrusting unexpectedly stopped and the spacecraft entered safe mode on September 11.

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Flights are underway from Fairbanks, Alaska, with NASA's C-130 Hercules aircraft

September 16, 2014

NASA Air Campaigns Focus on Arctic Climate Impacts

As the region's summer comes to a close, NASA is hard at work studying how rising temperatures are affecting the Arctic.

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Powerful, Pulsating Core of Star

September 16, 2014

Pulse of a Dead Star Powers Intense Gamma Rays

When the most massive stars explode as supernovas, they don't fade into the night, but sometimes glow ferociously with high-energy gamma rays.

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Image depicts the primary landing site on comet 67P/Churyumov-Gerasimenko

September 15, 2014

'J' Marks the Spot for Rosetta's Lander

The European Space Agency's Rosetta mission has chosen the primary and backup cometary landing sites for its November landing attempt.

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Artist's rendering of NASA's ISS-RapidScat instrument (inset)

September 12, 2014

NASA's Wind-Watching ISS-RapidScat Ready for Launch

The fourth SpaceX cargo mission to the International Space Station, carrying the JPL-built ISS-RapidScat instrument, is scheduled to launch Sept. 20.

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Distinct Terrains on Rosetta's Comet

September 11, 2014

First Map of Rosetta's Comet

Scientists on the Rosetta mission have mapped several distinctive regions on the nucleus of comet 67P/Churyumov-Gerasimenko.

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This image from NASA's Mars Curiosity rover shows the

September 11, 2014

NASA's Mars Curiosity Rover Arrives at Martian Mountain

NASA's Mars Curiosity rover has reached Mount Sharp, a Mount-Rainier-size mountain at the center of the vast Gale Crater and the rover mission's long-term prime destination.

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