Holes

Study rules out initially clustered primordial black holes as dark matter candidates

Study rules out initially clustered primordial black holes as dark matter candidates

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Pixabay. Primordial black holes (PBHs) are fascinating cosmic bodies that have been widely investigated by astrophysicists worldwide. As suggested by their name, these are black holes believed to have appeared in the universe’s early days, less than a second after the Big Bang. Physics theory suggests that within the fraction of a second before the …

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We Finally Know How Black Holes Produce The Most Brilliant Light In The Universe

We Finally Know How Black Holes Produce The Most Brilliant Light In The Universe

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For something that emits no light that we can detect, black holes just love to cloak themselves in radiance. Some of the brightest light in the Universe comes from supermassive black holes, in fact. Well, not actually the black holes themselves; it’s the material around them as they actively slurp down vast amounts of matter …

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Bright light from black holes caused by particle shock waves

Bright light from black holes caused by particle shock waves

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Scientists have reported a “huge leap forward” in the understanding of light and other electromagnetic radiation emitted by black holes using NASA’s newly deployed $188m space telescope IXPE. Beams of electrons smash into slower-moving particles causing a shock wave which results in electromagnetic radiation across frequency bands from X-rays to visible light, according to a …

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Two Black Holes Met by Chance, And It Created Something Never Seen Before

Two Black Holes Met by Chance, And It Created Something Never Seen Before

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The ripples in space-time generated by colliding black holes have taught us a lot about these enigmatic objects. These gravitational waves encode information about black holes: their masses, the shape of their inward spiral towards each other, their spins, and their orientations. From this, scientists ascertained that most of the collisions we’ve seen have been …

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New space observatory helps solve mystery involving enormous black holes

New space observatory helps solve mystery involving enormous black holes

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By Will Dunham WASHINGTON (Reuters) – Most galaxies are built around humongous black holes. While many of these are comparatively docile, like the one at our Milky Way’s center, some are fierce – guzzling surrounding material and unleashing huge and blazingly bright jets of high-energy particles far into space. Using data from the recently deployed …

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The Black Holes We've Viewed Might Actually Be Wormholes

The Black Holes We’ve Viewed Might Actually Be Wormholes

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The known universe is full of exciting things like black holes, hypernovas, and merging neutron stars. All of those, however, look tame compared to items physicists think might exist but have yet to find. Perhaps chief among these are wormholes, which theoretically join parts of space and time, allowing those who enter them a shortcut …

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An artist’s impression of the Cygnus X-1 X-ray binary, which features a black hole stripping material from a companion star, and the material forming a hot accretion disk.

NASA X-ray observatory reveals how black holes swallow stars and spit out matter

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The joint NASA–Italian Space Agency Imaging X-ray Polarimetry Explorer (IXPE) has peered deep into the hot gas surrounding a black hole, in observations that are helping teach us how black holes both swallow and spit out matter. IXPE launched in December 2021 to study some of the most highly energetic objects in the universe, including …

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A view of GRB221009A from the Gemini South telescope in Chile.

The most powerful gamma-ray burst ever seen could help reveal how black holes are born

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All eyes are on the source of the record-breaking gamma-ray burst that lit up the sky last week. On Oct. 9, a beam of light more energetic than astronomers had ever seen zipped past our planet, temporarily blinding detectors on several NASA satellites. The beam came from a gamma-ray burstthe most energetic type of explosion …

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