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black hole

Scientists have discovered a large black hole that "hiccups", and emits gas fluxes. Analysis revealed that a small black hole repeatedly punctures the gas disk of the large black hole, causing the perturbations to be released. Strong magnetic fields, north and south of the black hole, shown by the orange cone, shoot the flux up and out of the disk. Each time the small black hole punctures the disk, it emits another star, in a regular periodic pattern. Credit: Jose-Luis Olivares, MIT

Black hole "hiccuping" - astronomers are surprised by periodic eruptions in a distant galaxy

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In a distant galaxy, the supermassive black hole's intermittent gas fluxes led to the discovery of a smaller black hole in its orbit
The bright twinkling is the supernova SN 2023ixf in the Vane Galaxy. Image based on telescopic data obtained on May 20, 21 and 22, 2023. Credit: Travis Dew, University of Arizona (Hosseinzadeh et al. 2023)

A once-in-a-lifetime supernova: unprecedented mapping of a stellar explosion

Optical image of the galaxy where the new event occurred, from PanSTARRS archive data. The x-ray itself is somewhere inside the white circle, and is about the size of a pinhead from 100 meters away. Also shown is the location of a two-year-old supernova. Credit: Daniele B. Malesani / PanSTARRS

Stellar feast: A ferocious black hole "drinks" the equivalent of three Earths from a star every time it passes

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A Sun-like star located in a galaxy roughly 500 million light-years away is being gradually devoured by a black hole, shedding a mass equal to three Earths on each close pass.

The beginning of the universe in the eyes of science

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A special article in honor of Hebrew new year summarizing the creation of the world through the lens of science
The galaxy GS-9209. credit g. brammer c. Williams A. carnall, University of Edinburgh

Webb revealed features of a galaxy 25 billion light years away

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The galaxy is currently 25 billion light-years away, but when light began to travel from it to us about 12.5 billion years ago, it was much closer, because the universe is expanding
A blazar fires a jet of cosmic rays and neutrinos towards Earth and is absorbed by the IceCube facility at the South Pole. Figure IceCube/NASA

A collaboration between the neutrino detector and a space telescope led to the identification of a source producing cosmic rays for the first time

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What could cause the most powerful flash of light ever observed?

The strongest flash of light ever observed in space - probably the result of a star "falling" into a black hole

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Artist's impression of a star being pulled into a black hole and destroyed (left), and the black hole later emitting a "jet" of plasma made up of the debris from the star's destruction. Illustration: Amadeo Bacher, Johns Hopkins University.

For the first time - watching the entire process of a star being swallowed by a black hole until the plasma jets are emitted

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black hole. Credit: Courtesy of Jay Schnittman, NASA Goddard Space Flight Center, Jay Krulik, Johns Hopkins University, and S. Noble, Rochester Institute of Technology.

Black holes in renewed controversy / Michael Moyer

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Combining separate observations of the Hubble space telescopes in visible light, and Chandra and Newton in X-radiation on the same quasar made it possible to distinguish more details. X-ray image: NASA/CXC/University of Michigan RCReis et al. Optical NASA/Space Telescope Science Institute

Hubble, Chandra and Newton were able to measure the spin of a distant black hole for the first time

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Prof. Olaf Leonhardt. Light rays

Invisible

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Particles from space deep in the ice

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IceCube detector. Photo: Jamie Young/NSF and IceCube Collaboration

Guests from the edge of the universe

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Matter surrounding a black hole. (NASA/Dana Berry/SkyWorks Digital)

For the first time physicists predict the birth of a black hole

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Supernova SN1979C is a likely candidate for the youngest black hole ever observed. Photo: NASA

The Chandra Space Telescope has discovered an extremely young and relatively nearby black hole

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The center of the Milky Way, which also contains the black hole *Sagittarius A. The black hole and several massive young stars in this region create the heated gas vapor visible at X-ray frequencies. Photo: Helvin Chandra, Harvard University and Tokyo University

The Laboratory for Testing General Relativity: The Supermassive Black Hole and the Star

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Prof. Donald Linden-Bell

Astrophysicist Donald Linden-Bell will receive an honorary doctorate from the Hebrew University

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Scientists, including a researcher from the Technion, discovered a way to produce a black hole in the laboratory

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Scientists at the Technion have created a black hole that captures sound waves

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A black hole was discovered in a surprising place

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