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Where DOES Space Begin? Virgin Galactic's SpaceShipTwo Flies Right into the Debate
December 13, 2018 | Article"SpaceShipTwo, welcome to space," reads a triumphant tweet from Virgin Galactic posted during today's successful test flight after the company's vehicle reached 51.4 miles (82.7 kilometers) in altitude.
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Comet Will Make Closest Approach to Earth This Weekend. And You Can See It Without a Telescope.
December 13, 2018 | ArticleAs comets blaze across the night sky, they can bring wonder and excitement to those watching from Earth – or even a sense of impending doom.
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The Rubber Ducky Comet Blasted a Magnetic Path Through Space
December 12, 2018 | ArticleRosetta's comet sent a magnetic shock wave screaming out in front of it, blazing a trail through the stellar wind. And scientists just found it.
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NASA Space Lasers Creating Most Detailed Map Ever of Antarctica's Ice
December 12, 2018 | ArticleIt's measuring the highs and lows of our planet.
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Asteroid Bennu Had Water! NASA Probe Makes Tantalizing Find
December 11, 2018 | ArticleNASA's OSIRIS-REx probe, which just arrived at the asteroid Bennu last week, has already found lots of hydrated minerals on the space rock, mission team members announced today (Dec. 10).
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It's Official! NASA's Famed Voyager 2 Spacecraft Reaches Interstellar Space
December 10, 2018 | ArticleIt's time to say goodbye to one of the most storied explorers of our age: Voyager 2 has entered interstellar space.
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This Fluffy Alien World Farts Helium
December 09, 2018 | ArticleAs a Jupiter-size world swings around its small but active star, bombarded by radiation, the planet leaves behind a tail of escaping helium as wide as itself — and researchers have spotted this tail from the ground.
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Will Dark Matter Mess with These Ultraprecise Atomic Clocks?
December 09, 2018 | ArticleResearchers are putting a global network of the most precise timekeepers ever made to the task of hunting for dark matter, the invisible and largely intangible substance that researchers think makes up about five-sixths of all matter in the universe.
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Tiny 'Blueberries' on Mars Continue to Baffle Scientists
December 08, 2018 | ArticleSnack-loving scientists working with the Opportunity mission on Mars dubbed tiny, iron-rich spheres scattered near the robot's landing site "blueberries," but these features were easier to name than to understand.
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China Launches 1st Mission to Land on Far Side of the Moon
December 08, 2018 | ArticleChina's robotic Chang'e 4 spacecraft launched from Xichang Satellite Launch Center Dec. 7, kicking off the first-ever surface mission to the moon's far side.
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