Black holes

Black holes in 'little red dot' galaxies may emit cosmic ghosts, which are high-energy particles or radiation, potentially impacting Earth. The phenomenon suggests these galaxies could be sources of astrophysical activity with far-reaching effects.

Scientists propose that black holes halt evaporation at the final moment, leaving behind remnants that preserve their information. The same seven-dimensional geometry concept may also explain why elementary particles have mass.

Astronomers have solved the mystery of why black holes emit delayed cosmic 'burps', shedding light on the mechanisms behind these phenomena. The discovery provides new insights into the behavior of black holes in the universe.

A new theoretical study suggests that collapsing massive stars might create tiny new universes driven by dark energy, forming exotic objects called gravastars instead of black holes. The collapse could generate a miniature cosmos that expands and resists gravitational collapse.

Caltech is preparing to build the world’s most sensitive radio telescope to observe cosmic radio waves from sources like black holes and pulsars. The project will utilize advanced telescope designs, including single-dish structures like China’s FAST and array systems such as the Very Large Array in New Mexico.

The article discusses the theoretical possibility of 'spacetime crystals' generating tiny black holes. It highlights a scientific concept linking exotic spacetime structures to potential black hole formation.

Scientists proposed a new method to detect tightly bound supermassive black hole pairs by observing stars that flash repeatedly due to gravitational magnification. The timing and brightness of these bursts could reveal black holes spiraling toward a collision.

A physicist who received a Sloan Research Fellowship for black hole research in 2021 has returned to China to take a professorship at Fudan University in Shanghai and join the Fudan Centre for Astronomy and Astrophysics.

Scientists suggest the idea that black holes could transform into white holes is not implausible. An illustration depicts a black hole before and after such a transformation.

Scientists used advanced supercomputer plasma simulations to discover how the universe creates large magnetic fields from turbulence. This breakthrough could enhance understanding of stars, black holes, neutron star collisions, and solar eruptions.

Scientists have discovered evidence explaining the origin of intermediate-mass black holes, which are too large to form from stellar death but not as massive as supermassive black holes. This breakthrough resolves a long-standing mystery about these 'impossible' black holes.

Physicists have created a new model to predict how dark matter could distort gravitational waves produced during black hole mergers. The method was tested on real LIGO data and one signal stood out as potentially carrying a dark matter imprint. This could be a clue about dark matter hidden across the universe.

The article discusses the possibility of Cauchy horizons inside specific black holes, boundaries beyond which physics may no longer apply, allowing for unpredictable phenomena. Columnist Leah Crane examines this concept where future events might influence the past.

Scientists are exploring the possibility of detecting dark matter through sound. An illustration shows two colliding black holes flanked by dark matter. Researchers are trying to find new ways to detect dark matter.

The Universe's biggest black holes are formed through repeated smashups inside crowded star clusters, creating a distinct class of rapidly spinning black holes. Scientists analyzing gravitational-wave signals found evidence of this process. These black holes are likely 'cosmic recyclers' formed through violent mergers.

The formation of massive black holes in the universe may be driven by the dense stellar environment of globular clusters like M80. Ripples in spacetime provide a clue to this phenomenon. The study of these clusters can help understand the creation of the biggest black holes.

A cyclic universe model proposes that dark matter might consist of black holes existing before the Big Bang. This theory challenges the conventional understanding of dark matter's origins.

Scientists have recorded powerful 'dancing jets' emanating from black holes, with energy output equivalent to 10,000 suns, offering new insights into these cosmic phenomena. The discovery highlights the immense power and dynamic behavior of black holes in the universe.

Scientists observed powerful 'dancing jets' emanating from black holes, with energy output equivalent to 10,000 suns, revealing new insights into cosmic phenomena.

Dark matter, an elusive substance making up most of the universe's mass, may be composed of black holes from a different universe, according to a new scientific theory. The claim suggests these cosmic entities could explain dark matter's gravitational effects without requiring new physics.

Dark matter, an elusive substance thought to make up most of the universe's mass, may be composed of black holes from a different universe, according to a new scientific theory. The claim suggests these black holes could explain the gravitational effects attributed to dark matter without requiring new particles.