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Sky is falling: Space junk in orbit piling up BERLIN - If you want to catch a last glimpse of Chinese satellite Tiangong-1, you better hurry. Circling the earth at 17,500 mph every 90 minutes, the 19,000-pound satellite will likely have vanished by the end of this weekend, to reappear as a ...
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NASA's next mission to Mars will be California's biggest launch ever InSight is tested at the Astrotech processing facility at Vandenberg Air Force Base ahead of its scheduled May launch. (Credit: USAF 30th Space Wing/Alex Valdez).
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