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Black hole singularity is a surface not a point
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Black hole singularity is a surface not a point

Hacker News·25 days ago
#iZPLxxQk
#arxiv#black#hole#singularity#surface#quantum

It is widely repeated in the popular literature and elsewhere that the singularity at the center of a black hole is a point. It is not true. Two observers who free-fall into a spherical black hole along two different angular trajectories at the same time…

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Webb reveals black hole that formed before its galaxy
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Webb reveals black hole that formed before its galaxy

ESA Top News·4 months ago
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#esa#black#qso1#hole#mass#galaxy

Using the unprecedented imaging and spectroscopic power of the NASA/ESA/CSA James Webb Space Telescope, researchers have mapped the motion and composition of gas orbiting a black hole in the centre of Abell2744-QSO1, a tiny galaxy more than 13 billion…

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Dark Matter May Have Left Its Fingerprint in a Gravitational Wave.
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Dark Matter May Have Left Its Fingerprint in a Gravitational Wave.

Universe Today·Mark Thompson·4 months ago
#aLCLFIqK
#matter#dark#black#gravitational#hole#photo

Dark matter makes up roughly 85 percent of all the matter in the universe. We have never directly detected a single particle of it. But a new method developed by physicists at MIT and across Europe may have just opened a door we didn't know existed.…

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The Dots That Broke the Rules
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The Dots That Broke the Rules

Universe Today·Mark Thompson·4 months ago
#aPl7cmQd
#black#little#hole#light#chandra#photo

Since the James Webb Space Telescope switched on, astronomers have been puzzled by hundreds of tiny, ancient, red objects lurking at the edge of the observable universe.…

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Black holes don't live forever, but they might live long enough to look like white holes
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Black holes don't live forever, but they might live long enough to look like white holes

phys.org·Brian Koberlein·4 months ago
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Black holes live forever, at least according to general relativity. Once material crosses a black hole's event horizon, it is trapped forever, until the last day of cosmic time. But we know that isn't true. General relativity is a classical model.…

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