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Tail of stray black hole hiding in the Milky Way

By analyzing the gas motion of an extraordinarily fast-moving cosmic cloud in a corner of the Milky Way, astronomers found hints of a wandering black hole hidden in the cloud. This result marks the beginning of the search for quiet black holes; millions of such objects are expected to be floating in the Milky Way although only dozens have been found to date.

Feb 2nd, 2017

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Tracing the cosmic web with star-forming galaxies in the distant universe

A research group has revealed a picture of the increasing fraction of massive star-forming galaxies in the distant universe. Massive star-forming galaxies in the distant universe, about 5 billion years ago, trace large-scale structure in the universe. In the nearby universe, about 3 billion years ago, massive star-forming galaxies are not apparent.

Jan 31st, 2017

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Galaxy murder mystery

It's the big astrophysical whodunnit. Across the Universe, galaxies are being killed and the question scientists want answered is, what's killing them?

Jan 17th, 2017

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Our galaxy's black hole is spewing out planet-size 'spitballs'

If a star wanders too close to the black hole at the center of the Milky Way, the black hole's powerful gravity rips the star apart, sending a long streamer of gas whipping outward. New research shows that not only can the gas gather itself into planet-size objects, but those objects then are flung throughout the galaxy in a game of cosmic 'spitball'.

Jan 11th, 2017

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Hubble captures 'shadow play' caused by possible planet

Searching for planets around other stars is a tricky business. They're so small and faint that it's hard to spot them. But a possible planet in a nearby stellar system may be betraying its presence in a unique way: by a shadow that is sweeping across the face of a vast pancake-shaped gas-and-dust disk surrounding a young star.

Jan 10th, 2017

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Astronomers discover cosmic double whammy

Two of the most powerful phenomena in the Universe - a supermassive black hole and the collision of giant galaxy clusters - have combined to create a stupendous cosmic particle accelerator.

Jan 6th, 2017

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Research reinforces role of supernovae in clocking the universe

New research by cosmologists confirms the accuracy of Type Ia supernovae in measuring the pace at which the universe expands. The findings support a widely held theory that the expansion of the universe is accelerating and such acceleration is attributable to a mysterious force known as dark energy.

Jan 4th, 2017

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Researchers get first look at new, extremely rare galaxy

Approximately 359 million light-years away from Earth, there is a galaxy with an innocuous name (PGC 1000714) that doesn't look quite like anything astronomers have observed before. New research provides a first description of a well-defined elliptical-like core surrounded by two circular rings - a galaxy that appears to belong to a class of rarely observed, Hoag-type galaxies.

Jan 4th, 2017

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