Tag

Hawking Radiation

All articles tagged with #hawking radiation

science1 month ago•43 min saved

Seven hidden dimensions could trap black holes in tiny remnants, reshaping Hawking’s paradox

A new theoretical study proposes that if the universe has seven space-time dimensions with three hidden compact dimensions (folded in a G2 geometry), a torsion field could halt Hawking evaporation at the end of a black hole’s life, leaving stable microscopic remnants that store information and may connect gravity to the Higgs mechanism—though testing this idea would require physics beyond current capabilities and must contend with the limits of semiclassical descriptions near the Planck scale.

via Yahoo|

#black-holes #extra-dimensions #hawking-radiation

science2 months ago•37 min saved

Hawking’s Tiny 1974 Paper: Black Holes That Could Explode

In 1974 Stephen Hawking published a short Nature paper proposing that tiny primordial black holes, formed in the early universe, could evaporate and explode via Hawking radiation, flipping the view that black holes only grow. The idea, which connects quantum mechanics to gravity, later sparked the black hole information paradox as it suggested information might be lost; Hawking and collaborators’ later work proposed mechanisms for information escape, including wormholes, though direct evidence remains elusive. Ongoing research, including gravitational waves and James Webb observations, continues to investigate primordial black holes and their potential cosmological signatures.

via Yahoo|

#black-holes #hawking-radiation #information-paradox

science3 months ago•20 min saved

Stephen Hawking: The quiet mind that reshaped the cosmos

Stephen Hawking, diagnosed with ALS at 21, defied doctors by living roughly 55 years beyond expectations, making landmark contributions to black holes (Hawking radiation) and cosmology, penning the bestseller A Brief History of Time, and becoming a global icon of science communication despite paralysis.

via Diario AS|

#black-holes #cosmology #hawking-radiation

space3 months ago•85 min saved

Ghost-state neutrino from a black hole explosion could rewrite physics and dark matter

A 2023 ultra-energetic neutrino detected by KM3NeT may have originated from an exploding primordial black hole with a dark charge (a quasi-extremal PBH). If confirmed, such events could provide a complete catalog of subatomic particles and illuminate dark matter, but the idea is unproven and lacks corroborating detections. Researchers predict a first quasi-extremal PBH explosion could occur by 2035, highlighting a potential new window into particle physics and cosmology.

via Live Science|

#dark-charge #dark-matter #hawking-radiation

science3 months ago•37 min saved

Cosmic Countdown: Universe May Fade Away in 10^78 Years, Study Finds

A new theoretical study argues that not only black holes but other ultradense objects will evaporate via Hawking radiation, shortening the universe’s remaining lifetime to about 10^78 years—far sooner than the previously estimated 10^1100 years. White dwarfs and neutron stars, along with black holes, will gradually fade through gravitational pair production, with white dwarfs and massive black holes persisting around 10^78 years and neutron stars around 10^67 years. Earth would survive roughly 5 billion more years until the Sun consumes it, after which all matter and life would ultimately vanish in the cosmic void.

via Yahoo|

#cosmology #hawking-radiation #neutron-stars

space3 months ago•6 min saved

Dark-Charge Black Holes May Explain Ultra-High-Energy Neutrino Burst

KM3NeT detected a 100 PeV neutrino (KM3-230213A) with no known source. A Physical Review Letters study proposes exploding quasi-extremal primordial black holes with a dark charge as a possible origin, invoking Hawking radiation that heavier, lighter PBHs would emit high-energy particles in a final burst. IceCube has not observed a comparable event, possibly due to its different energy window. If correct, such PBH evaporations could occur roughly every decade, linking ultra-high-energy neutrinos to PBH physics.

via ScienceAlert|

#dark-charge #hawking-radiation #km3net

science3 months ago•3 min saved

Ultra‑Energy Neutrino Sparks Dark-Electron Black Hole Theory

A rare, ultrahigh-energy neutrino detected by KM3NeT in 2023 prompts a bold hypothesis: a quasi-extremal primordial black hole dumping dark electrons, triggering a rapid explosion that emits a narrow band of neutrinos; the idea, outlined in a Physical Review Letters preprint and set for formal publication, could explain why KM3NeT saw the event while IceCube did not, but it remains speculative pending more data and analysis.

via Gizmodo|

#dark-electrons #hawking-radiation #km3net

space3 months ago•82 min saved

Ultra-energetic neutrino hints at exploding primordial black holes and dark matter link

A 2023 ultra-high-energy neutrino detected by KM3NeT is proposed to be debris from an exploding primordial black hole, potentially evidencing Hawking radiation and primordial black holes as dark matter candidates, though IceCube’s non-detection and a proposed dark-charge model for quasi-extremal black holes add complexity to the interpretation.

via Space|

#dark-matter #hawking-radiation #km3net

science3 months ago•7 min saved

Primordial Black Hole Bursts May Explain Ultra-Energetic Neutrinos

After a 2023 ultra-high-energy neutrino puzzled scientists, a UMass Amherst team proposes it originated from a primordial black hole explosion driven by Hawking radiation; their 'dark-charge' (quasi-extremal PBH) model could connect PBHs to dark matter and suggest these explosions may occur more often than thought, guiding future astrophysical searches.

via The Daily Galaxy|

#dark-charge #dark-matter #hawking-radiation

science3 months ago•11 min saved

Dark-Charged Black Holes May Explain Ultra-Energetic Neutrino

A 2023 KM3NeT detection of a ~220 PeV neutrino challenges standard sources; researchers propose it came from a quasi-extremal primordial black hole carrying dark charge that evaporates via a dark Schwinger effect, discharging explosively and emitting high-energy neutrinos while spending most of its life dormant. If correct, such black holes could explain the IceCube–KM3NeT mismatch and potentially account for dark matter.

via ZME Science|

#dark-matter #dark-sector #hawking-radiation

science3 months ago•5 min saved

Dark-Charge Black Holes Could Rewrite Our View of Neutrinos and Dark Matter

UMass Amherst theorists propose that explosions of quasi-extremal primordial black holes with a dark charge could produce the 2023 ultra-high-energy neutrino and, if true, link Hawking radiation to primordial black holes and dark matter, offering a new path to understand fundamental physics.

via UMass Amherst|

#dark-charge #dark-matter #hawking-radiation

science4 months ago•14 min saved

Hawking's Lawful Cosmos: Science Governs the Universe, Not Divine Interventions

The article uses Stephen Hawking’s famous line that the universe is governed by the laws of science—perhaps decreed by God but not intervened in—to explore the ongoing science-vs-religion debate, while recounting Hawking’s life from his 1942 birth and ALS diagnosis to his groundbreaking work (including Hawking radiation), his bestselling writings, his marriages, and his public portrayals in film, ending with his 2018 death and lasting legacy.

via 19FortyFive|

#a-brief-history-of-time #cosmology #hawking-radiation

science4 months ago•13 min saved

Ultra-energetic Neutrino Sparks Primordial Black Hole Hypothesis

A record-energy neutrino detected by the KM3NET underwater telescope could originate from the explosive end of a primordial black hole, a provocative link to dark matter. Kaiser and Klipfel model a scenario where a small asteroid-mass PBH exploded about 2,000 AU away to produce the neutrino, estimating roughly an 8% chance. While intriguing, the idea remains unproven and controversial among scientists.

via Quanta Magazine|

#dark-matter #hawking-radiation #km3net

science6 months ago•5 min saved

The Fate of Matter Inside a Black Hole

Black holes are formed from collapsing massive stars, creating a region with an event horizon beyond which nothing can escape, and possibly a singularity where matter is compressed infinitely. They influence their surroundings through accretion disks and jets, distort time and space, and may eventually evaporate via Hawking radiation, playing a crucial role in understanding the universe's fundamental laws.

via Yahoo|

#black-holes #event-horizon #gravity

science7 months ago•3 min saved

Lab Simulation of Black Hole Emits Glow

Physicists simulated a black hole in the lab using a chain of atoms, observing Hawking radiation-like effects, which could provide insights into the unification of quantum mechanics and general relativity and help understand black hole phenomena.

via ScienceAlert|

#black-hole #event-horizon #hawking-radiation