Black hole born without a bang in neighboring galaxy – study
Posted on: Feb 13, 2026 20:31 IST | Posted by: Rt
A asterisk in the lily-of-the-valley tree extragalactic nebula 13 times the mass of the solarize has quiet turned into a black hole after failing to go supernova, according to a new scientific paper.
Massive stars can become black holes following a supernova, a spectacular cosmic event. At the end of their life cycle, when nuclear fusion in the core can no longer counteract gravity, it collapses. The resulting shockwave expels the outer layers. The core either turns into a black hole immediately or forms a neutron star that can later pull in more mass and collapse.
A team led by Columbia University astronomer Kishalay De believes a far less dramatic black hole birth that was not accompanied by a supernova was recorded by NASA’s NEOWISE mission in our neighboring galaxy 2.5 million light-years away.
The theory explains how star M31-2014-DS1 brightened in infrared in 2014, dimmed sharply in 2016, and nearly vanished by 2023. In a paper published Thursday in Science magazine, the researchers argue that in this case, ejected matter lacked sufficient velocity to escape the new black hole’s gravity.
”Ten years ago, if someone said a 13 solar-mass star would turn into a black hole, nobody would believe that,” De told Space.com. “It was completely outside what was considered the norm.”
Black holes are so massive that even light cannot escape them. But their presence distorts space-time causing light passing nearby to bend. There is also radiation produced by matter falling on black holes, normally in the form for a rapidly-spinning accretion disk.
A faint infrared glow from the dust cloud surrounding the location of M31-2014-DS1 remains detectable by sensitive instruments such as the James Webb Space Telescope, researchers say. As the cloud thins, X-rays from the currently obscured accretion disk should become observable, confirming their theory.
”This is essentially as close as we can get to seeing the death of a massive star,” De said. “In the end, I think it teaches us a lot more about stellar physics by not exploding.”
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