Detailed look at white dwarf orbited by planetary fragments

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Astronomers have analyzed an exceptional white dwarf displaying periodic transits produced by fragments of a shredded planetesimal.
via Science Daily
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New simulation sheds light on spiraling supermassive black holes

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A new model is bringing scientists a step closer to understanding the kinds of light signals produced when two supermassive black holes, which are millions to billions of times the mass of the Sun, spiral toward a collision.
via Science Daily
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New extremely distant solar system object found during hunt for Planet X

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Astronomers have discovered a new extremely distant object far beyond Pluto with an orbit that supports the presence of an even-farther-out, Super-Earth or larger Planet X.
via Science Daily
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Nearly the entire sky in the early universe is glowing with Lyman-alpha emission

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Deep observations made with the MUSE spectrograph on ESO's Very Large Telescope have uncovered vast cosmic reservoirs of atomic hydrogen surrounding distant galaxies. The exquisite sensitivity of MUSE allowed for direct observations of dim clouds of hydrogen glowing with Lyman-alpha emission in the early Universe -- revealing that almost the whole night sky is invisibly aglow.
via Science Daily
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