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Pluto’s Moons Offer Hints of Alien Worlds
Planet or not, Pluto and its newest moons may tell us a lot about how other worlds orbit distant...
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Newfound Object Is Faintest Distant Galaxy Seen at Universe’s Edge
Astronomers have found the faintest galaxy yet seen in the deep, distant reaches of space, an object whose light...
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Cosmic Calculations: Astrophysicists Explore Where Stars Are Born
A University of Delaware-led research team reports an advance in the journal Science that may help astrophysicists more accurately...
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Stars Reveal Early History of Milky Way
A new way to find a star’s age can give clues to how our Milky Way galaxy built itself...
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Our Sun Is Moving Slower Than Thought
"Shocking" find may redraw picture of solar system's cosmic shield.
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Monster Black Holes Stifle Star Birth
The intense energy and winds from gigantic black holes can block the birth of stars as scientists have long...
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‘Ridiculously Dim’ Bevy of Stars Found Beyond Milky Way
A team of American, Canadian and Chilean astronomers have stumbled onto a remarkably faint cluster of stars orbiting the...
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Cosmic Blasts Powered By a Hot Glow
Since its launch in 2008, the Fermi space telescope has recorded hundreds of gamma-ray bursts (GRBs), flashes of light...
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Tidal Heating Shrinks the Goldilocks Zone
A previously little-considered heating effect could shrink estimates of the habitable zone of the Milky Way’s most numerous class...
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Odds of Finding Alien Life Boosted By Billions of Habitable Worlds
A new estimate of the number of habitable planets orbiting the most common type of stars in our galaxy...