The European-Japanese BepiColombo mission captured its first photo on Saturday (Oct. 20), a day after lifting off from French Guiana. The image is a selfie showing a solar array and an insulation-wrapped sun sensor.
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There's a telescope that can see thick rings of dust in distant star systems. And researchers want to use its data in a new way to spot hidden and migrating exoplanets.
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NASA added 21 new "constellations" to the sky, thanks to invisible gamma-ray light.
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Iridium 70 fell out of orbit Oct. 10. A few days later, one of its fuel tanks caused a stir in central California.
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We should all get to know our galactic home better.
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We still have a long way to go in the search for intelligent aliens.
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But how is such a mission even possible?
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Dark energy may be decreasing, which puts a crimp in the notion that the universe will expand forever.
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Feed and inspire a kid's thirst for space with these book picks by Space.com's writers and editors.
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The Chandra X-ray Observatory, which has been observing the universe in high-energy light since 1999, entered a protective "safe mode" on Wednesday (Oct. 10).
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