The NuSTAR telescope, seen in this artist's illustration, will soon be sending back data that researchers will use to study black holes. NASA/JPL-Caltech hide caption

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Telescope Targets Black Holes' Binges And Burps
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Ask An Astrophysicist
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Sally Ride, Pioneer
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The Humility And Determination Of Sally Ride
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50 Years Ago, Telstar Debuted Live Video From Space
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The Eskimo Nebula, as shown through the Hubble Telescope. NASA/Flickr hide caption

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Jill Tarter: A Scientist Searching For Alien Life
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The northern lights over Tromsoe, northern Norway, on Jan. 24, 2012. Rune Stoltz Bertinussen/AFP/Getty Images hide caption

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Fledgling NASA Nonprofit Starts To Lift Off
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Astronauts Prepare For Departure
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An artist's illustration of events on the sun changing the conditions in near-Earth space. NASA hide caption

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Twin Probes To Investigate Space Weather Mysteries
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More To The Universe Than Meets The Eye
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Voyager 1 Bids Farewell to the Solar System
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Will China Blast Past America In Space?
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