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Rare plutonium from space found in deep-sea crustA rare type of plutonium has been found in the crust below the deep sea, offering new clues as to how heavy metals form in star explosions and mergers.
By Stephanie Pappas Published
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Interstellar visitor 'Oumuamua came from an 'alien Pluto,' new study suggestsBack in 2017, a point of strange light flashed through the solar system. Three years later, a new team of scientists claims to have figured out what it was.
By Rafi Letzter Published
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Pluto's haze made up of ice crystals with cyanide heartsThe haze shrouding Pluto might be made up of ice crystals possessing cyanide hearts, a new study finds.
By Charles Q. Choi Published
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Pluto's famous heart powers icy winds on the dwarf planetPluto's heart-shaped feature, which NASA's New Horizons spacecraft discovered during its epic July 2015 flyby of Pluto, drives atmospheric circulation on the dwarf planet, a new study suggests.
By Mike Wall Published
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Pluto Still Deserves to Be a Planet, NASA Chief SaysPluto lost its "official" planet status over a decade ago, but fans of the solar system's underdog are still rooting for it. And NASA Administrator Jim Bridenstine is one of them.
By Passant Rabie Published
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Pluto's Battle Scars Reveal a Wild West at Solar System's Far ReachesThe battle scars on Pluto may reveal secrets about the formation of the early solar system.
By Brandon Specktor Published
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Ultima Thule Beyond Pluto Is Flat Like a Pancake (and Not a Space Snowman After All)The final photos that NASA's New Horizons spacecraft snapped of Ultima Thule during the probe's epic Jan. 1 flyby reveal the distant object to be much flatter than scientists had thought.
By Mike Wall Published
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Pluto Should Be a Planet and So Should Earth's Moon, New Study ClaimsSing along if you know the words: When the moon hits your eye, like a big pizza pie, that's a planet!
By Brandon Specktor Published
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Is Pluto a Planet? That Is the Question ... Again.The long-simmering argument about Pluto's planethood has just flared up again.
By Mike Wall Published
