Every giant was once a baby, though you may never have seen them at that stage of their development. NASA’s James Webb Space Telescope has begun to shed light on formative years in the history of the universe that have thus far been beyond reach: the formation and assembly of galaxies...
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January 5, 2023,
Astronomy/Space
In giant clusters of hundreds or thousands of galaxies, innumerable stars wander among the galaxies like lost souls, emitting a ghostly haze of light...
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September 21, 2022,
Astronomy/Space
Using India’s AstroSat spacecraft, astronomers have investigated a central field of a cluster of galaxies known as the Coma cluster. Results of the study, presented in a paper published September 13 on arXiv.org, deliver important insights into the properties and nature of this galaxy cluster.
Galaxy clusters contain up to thousands of galaxies bound together by gravity. They are the largest known gravitationally bound structures in the universe, and could serve as excellent laboratories for studying galaxy evolution and cosmology.
At a distance of about 321 million light ...
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A sky survey image of the massive galaxy NGC 1600, and a Hubble Space Telescope closeup of the bright center of the galaxy where the 17-billion-solar-mass black hole — or binary black hole — resides. Credit: ESA/Hubble image courtesy of STScI.
A near-record 17-billion-sun supermassive black hole discovered in a sparse area of the local universe indicates these monster objects may be more common than once thought. Until now, the biggest supermassive black holes – those with masses ~10 billion times that of our sun – have been found at the cores of very large galaxies in regions loaded with other large galaxies. The current record holder, discovered in the Coma Cluster tips the scale at 21 billion solar masses and is listed in the Guinness Book of World Records.
The newly discovered black ho...
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