Latest Brightest cluster galaxy Stories
El Gordo is Spanish for "the fat one," and according to new Hubble data, galaxy cluster ACT-CLJ0102-4915 definitely lives up to its nickname.
A new analysis from scientists at NASA's Jet Propulsion Laboratory (JPL) revealed that supermassive galaxies have stopped cannibalizing their neighbors over the past few billion years.
A new Hubble Space Telescope image released today shows off a multi-wavelength view of radio galaxy Hercules A.
Thanks to the Hubble Space Telescope, a team of astronomers have located the most distant grouping of still-developing galaxies ever witnessed in the early universe, NASA announced on Tuesday.
Like wine in a glass, vast clouds of hot gas are sloshing back and forth in Abell 2052, a galaxy cluster located about 480 million light years from Earth.
Galaxies are thought to develop by the gravitational attraction between and merger of smaller 'sub-galaxies', a process that standard cosmological ideas suggest should be ongoing.
Two spectacular tails of X-ray emission have been seen trailing behind a galaxy using the Chandra X-ray Observatory.
Astronomers have caught multiple massive galaxies in the act of merging about 4 billion years ago.
Taking advantage of the high sensitivity of ESA's XMM-Newton and the sharp vision of NASA's Chandra X-Ray space observatories, astronomers have studied the behaviour of massive fossil galaxy clusters, trying to find out how they find the time to form.
An analysis of the Hubble Space Telescope's deepest view of the universe offers compelling evidence that monster black holes in the centers of galaxies were not born big but grew over time through repeated galactic mergers.
Abell 2142, also called A2142 and located in the constellation Corona Borealis, is an X-ray luminous galaxy cluster. Its creation is due to the merger between two galaxy clusters. It is one of the largest objects in the universe and is six million light years across. It holds hundreds of galaxies and enough gas to make a thousand more. The pressure fronts in the system have been traced in detail and are relatively cool 50 million degree Celsius. The central region is embedded in large...
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