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After 30 years of service, NASA astronaut Mike Fincke retires
Recapping Europe's total solar eclipse, first in nearly 3 decades
Astronomers discover the existence of a 'black hole star'
Stunning new images reveal whirlpools on the sun's surface. The swirling structures might help power solar flares
NASA responds to claims gravity is about to switch off
New private 'Perceptor' probes will keep an eye on satellites high above Earth
Japanese power breakthrough could be 'step toward a fully wireless society'
SpaceX Dragon cargo capsule arrives at the ISS with 5,000 pounds of supplies (video)
Scoop: NASA talks about mission-critical role of Mason's Rocketdyne
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