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Mars used to be much warmer and wetter than it is today. Scientists are unraveling the mystery of why it dried out.
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A new analysis of particles believed to be from the bottom of oceans inside Enceladus suggests the moon is toasty warm.
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On Friday morning, NASA plans to launch the Orion spacecraft. It's seen as a first step in a possible human journey to Mars. Coloradans have a reason to…
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The new vehicle, named Orion, is designed to carry humans into deep space. But most Americans aren't aware it exists.
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Down in the Four Corners area, near the towns of Durango, Colorado, and Farmington, New Mexico, a NASA satellite has spotted an unexpected hot spot of…
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Earlier this week, NASA awarded two contracts for new spaceships to commercial companies. Here's how they compare.
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Four billion years ago, Mars may have looked completely different. Water could have flowed across the planet's surface. There might have been life. To…
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When Front Range residents look to the skies for the next few weeks, they may see something unusual – a NASA P-3 airplane buzzing just a thousand feet…
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Also: Amazon has removed the "Buy" buttons from a number of Hachette titles; Hassan Blasim's short story collection The Iraqi Christhas won the Independent Foreign Fiction Prize.
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Look up Colorado, and you may witness the birth of a new meteor shower late Friday night. That’s when the Earth passes through the orbit of a comet named…