A dark stream sheds new light on the life of galaxies

An international team of scientists led by a University of Sydney astrophysicist has discovered evidence the Andromeda galaxy is a cannibal growing through colossal intermittent feasts.

NASA's Chandra finds galaxy cluster collision on a 'WHIM'

Astronomers taking inventory of the material in the local universe keep coming up short. A new result from NASA's Chandra X-ray Observatory about a system of colliding galaxy clusters may help explain this shortfall.

Galaxy triplet SIT 45 inspected in detail

An international team of astronomers has performed multiwavelength photometric observations of a galaxy triplet known as SIT 45. Results of the study, published September 26 on arXiv.org, provide important information regarding ...

Supermassive black holes put a brake on stellar births

Black holes with masses equivalent to millions of suns do put a brake on the birth of new stars, say astronomers. Using machine learning and three state-of-the-art simulations to back up results from a large sky survey, researchers ...

Supermassive black holes put a brake on stellar births

Black holes with masses equivalent to millions of suns do put a brake on the birth of new stars, say astronomers. Using machine learning and three state of the art simulations to back up results from a large sky survey, the ...

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