This rendering shows a snapshot from a cosmological simulation of a Lyman-alpha blob. J.Geach/D.Narayanan/R.Crain/European Southern Observatory hide caption

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Astronomers Find Clues In The Case Of The Glowing Space 'Blobs'

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Under NASA's plan, a spacecraft would get to the asteroid in the early 2020s — then pluck a car-sized boulder from the surface and head back toward Earth, to put the boulder in orbit around the moon. NASA hide caption

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NASA's Other Asteroid Mission: Grab A Chunk And Put It In Orbit Around The Moon

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The spiny lizard, like other lizards, relies on sunshine and shade to regulate its body temperature. That makes the animals particularly vulnerable to climate change. Michael Angilletta, Arizona State University, Michael Sears, Clemson University hide caption

toggle caption Michael Angilletta, Arizona State University, Michael Sears, Clemson University

What did she say? Eniko Kubinyi/Science hide caption

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Their Masters' Voices: Dogs Understand Tone And Meaning Of Words

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An artist's depiction of the surface of the planet Proxima b as it orbits the red dwarf star Proxima Centauri, the closest star to our solar system. The planet is a bit more massive than Earth, scientists say, and circles its star once every 11 days. ESO/M. Kornmesser/Nature hide caption

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This Planet Just Outside Our Solar System Is 'Potentially Habitable'

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Michigan Wolverines fans do the wave in support of their team as it faces the Brigham Young Cougars at Michigan Stadium on Sept. 26, 2015, in Ann Arbor, Mich. Doug Pensinger/Getty Images hide caption

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The Physics And Psychology Of 'The Wave' At Sporting Events

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The long lifespan of the Greenland shark, shown here in the cold, deep waters of the Uummannaq Fjord, may only be surpassed by that of the ocean quahog, a clam known to live as long as 507 years. Julius Nielsen/Science hide caption

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Talk About An Ancient Mariner! Greenland Shark Is At Least 272 Years Old

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Astronomers Predict Incredible Show As Perseid Meteor Shower Peaks

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In 23 states and Washington, D.C., the nighttime driving restriction for unsupervised teens begins at midnight or later. Getty Images hide caption

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Most Nighttime Crashes With Teen Drivers Happen Before Midnight

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The Mystery Of The Fireball That Lit Up The Western Sky

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Though Jupiter's red spot looks small in this photo, it's actually about 10,000 miles wide — bigger than Earth's diameter. Space Telescope Science Institute/NASA hide caption

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How Jupiter's Red Spot Makes Things High Above It Hot, Hot, Hot

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Yao honey hunter Orlando Yassene holds a male greater honeyguide temporarily captured for research in the Niassa National Reserve, Mozambique. The birds will flutter in front of people, tweet and fly from tree to tree to guide hunters to bees' nests that are hidden inside the trunks of hollow trees. This teamwork could date back thousands or even a million years. Claire Spottiswoode hide caption

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How Wild Birds Team Up With Humans To Guide Them To Honey

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About 70 percent of Earth is covered by clouds at any given moment. Their interaction with climate isn't easy to study, scientists say; these shape-shifters move quickly. NOAA/Flickr hide caption

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Climate Change May Already Be Shifting Clouds Toward The Poles

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Congress is requiring NASA to travel to Jupiter's moon Europa by 2022. Currently, it is the space agency's only new mission planned for the outer solar system. NASA/JPL-Caltech/SETI Institute hide caption

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What Comes Next For NASA After Juno? Not Much

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