The most energetic “ghost particle” neutrino ever detected may have been blasted at Earth by blazars, suggesting that these events and their black hole engines are powerful cosmic particle accelerators.
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Which comes first, the galaxy or the black hole? We don’t know, but scientists have long thought it could be the galaxy: Large stars within an existing galaxy consume their fuel and collapse to form black holes, which can gobble up surrounding material and merge over time to form more massive entities. But it’s hard […]
Powerful bright blue cosmic explosions called Luminous Fast Blue Optical Transients could be caused when a black hole or neutron star slams into the universe’s hottest class of star.
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Merging black holes and neutron stars have unusual oval orbits prior to colliding and merging, which challenge the laws of physics.
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Finding X-rays coming from one of the little red dots discovered by the James Webb Space Telescope could be the key to answering what these weird objects truly are.
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A newly discovered object may be a key to unlocking the true nature of a mysterious class of sources that astronomers have found in the early universe in recent years. A “X-ray dot” found by NASA’s Chandra X-ray Observatory could explain what the hundreds or potentially thousands of these objects are. A paper describing the […]
“With the James Webb Space Telescope now revealing more supermassive black holes in the early universe, this mechanism may help bridge the gap between theory and observation.”
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Astronomers have discovered that jets from a cannibalistic black hole are erupting with the power of 10,000 suns.
Gravitational waves may have provided the first tantalizing evidence of tiny primordial black holes born during the Big Bang, which could account for dark matter.
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“It is fascinating that an active galactic nucleus can change its brightness so dramatically over such a short period of time.”
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