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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.
Webb's close-up, high-resolution ESA view of Herbig-Haro 211 reveals exquisite details of the young star's jet. Credit: ESA/Webb, NASA, CSA, Tom Ray (Dublin)

Webb photographed supersonic jets from a star of his day

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Herbig-harrows are luminous regions surrounding young stars. They form when stellar winds or jets of gas ejected from these stars create shock waves that collide at high speeds with nearby gas and dust.

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
Astronomers think that GRB 221009A is the birth of a newly formed black hole in the heart of a collapsing star. In this figure the black hole creates strong jets of particles that move at a speed close to the speed of light. The jets penetrate through the star, emitting X-rays and gamma rays as they flow into space. Credit: NASA/Swift/Cruz deWilde

Cosmic extremism: The unusual structure of the jet of the brightest gamma-ray burst of all time

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The unusual jet structure reveals unique features of the relatively nearby gamma-ray burst that can be studied in better detail than the gamma-wave bursts discovered so far
Charisma, seen in this artist rendering, is an X-ray mission that will study some of the most energetic objects in the universe. Credit: NASA's Goddard Space Flight Center Conceptual Image Lab

פענוח קשת עלעים הקוסמיט: מקר תשגר יפן את הלואינים קריזמן את התעלומה אתירות האנגריט של היךום

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A new spacecraft called XRISM (X-ray Imaging and Spectroscopy Mission, pronounced "charism") is designed to separate high-energy light into the equivalent of an X-ray rainbow
The Webb Space Telescope photographed the Ring Nebula. On the left using the NIRCam camera and on the right using MIRI. Credit: ESA/Webb, NASA, CSA, M. Barlow, N. Cox, R. Wesson

ווב לוקד את יופייה המפורט של ערפילית הנגעת

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The Ring Nebula, formed by a star shedding its outer layers, is a classic example of a planetary nebula and is also relatively close to us.
A massive magnetic helium star, on its way to becoming a magnetizer. Figure: ESO

A new type of star has been discovered: a massive magnetic helium star

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Astronomers at the European Southern Observatory discovered that the star HD 45166 is a neutron star about to become a megastar
Two nearly symmetrical swirling loops of gas and dust mark the dying flickers of an ancient red giant star. Credit: International Gemini Observatory/NOIRLab/NSF/AURA, TA Rector (University of Alaska Anchorage/NSF's NOIRLab), J. Miller (Gemini Observatory/NSF's NOIRLab), M. Rodriguez (Gemini Observatory/NSF's NOIRLab), M. Zamani ( NSF's NOIRLab)

An overflowing cosmic "urn" - telescope captures the spectacular end-of-life display of a red giant

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This end-of-life phase of red giant stars is relatively short, and the celestial structures that form around them are rare, so the Tobi Pitcher Nebula is an excellent example of a case study in the evolution of a star
Different types of stars. Illustration: depositphotos.com

Hotter than the sun: an extremely hot brown dwarf has been discovered about 1,400 light years away from us

The brown dwarf is part of a new pair system that may advance our understanding of the evolution of stars and planets under extreme radiation conditions
An artist's rendering of a collection of pulsars detecting gravitational waves from pairs of orbiting supermassive black holes. Credit: Aurore Simonnet for the NANOGrav Collaboration

Proof that the Earth is surrounded by a sea of ​​slow gravitational waves

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"The effect of gravitational waves on pulsars is very weak and difficult to detect, but we built the credibility of the findings over time as we collected more data," said Caterina Cazziano, NANOGrav team member and senior lecturer at Caltech.
Artist's impression of GRB 211211A. Credit: Soheb Mandhai @TheAstroPhoenix

Cosmic Gold Factory: A single kilonova produced very heavy elements in the amount of a thousand times the mass of Earth

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A highly unusual burst of high-energy light from a nearby galaxy is linked by scientists to a neutron star merger
Scientists say that stray planets, which wander through space when not bound to stars, far outnumber planets orbiting stars. Credit: NASA

Cosmic nomads: Roman space telescope could find 400 stray Earth-mass planets

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NASA's Nancy Grace Roman space telescope, which will be launched in May 2027, will be able to find an astonishing number of 400 Earth-mass stray worlds. Indeed, in the new study, one such candidate has already been identified
A giant radio telescope. Illustration: depositphotos.com

An innovative technique filters out real alien signals from mundane interference

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SETI researchers have invented a new technique for detecting potential alien radio signals
Aliens are listening for signals from Earth. Illustration: depositphotos.com

Can aliens discover us? New research explains

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What could aliens pick up from the radio leak from Earth? How would Earth look to an alien civilization light years away from us?
An image of the system HD 169142 shows the signal of the forming planet HD 169142 b (around 11 o'clock), and also a bright spiral arm following it as a result of the dynamic interaction between the planet and the disk in which it is located. Credit: V. Chrisitaens / ULiège

A new world is born: astronomers confirm a protoplanet 374 light years away from Earth

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Protoplanets form from clumps of material in disks around newborn stars. When the planet is still forming, that is, when it is still collecting material, it is called a protoplanet. This is only the third protoplanet discovered
Impressively, a pair of supermassive black holes (top left) emit gravitational waves that propagate through the fabric of space-time. These gravitational waves compress and stretch the trajectories of radio waves that emit pulsars (in white). By carefully measuring the radio waves, a team of scientists recently discovered for the first time the gravitational wave background of the universe. Credit: Aurore Simonnet for the NANOGrav Collaboration

Noisier than expected: Gravitational waves from supermassive black hole mergers "heard" for the first time

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NANOGrav Discovers Stronger Gravitational Waves Than Ever, Apparently Created by Pairs of Supermassive Black Holes
A new Web image showing a small area of ​​star formation in the Rho Ophiuchi cloud structure. Published on the occasion of the one year anniversary of the scientific activity of the James Webb Space Telescope. Photo: NASA/ESA/CSA

Webb marks one year of science with a close-up photo of the birth of sun-like stars

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From our own cosmic backyard in the Solar System to distant galaxies toward the dawn of time, the NASA/European Space Agency/CSA James Webb Space Telescope has lived up to its promise to reveal the universe like never before in its first year of scientific activity. To celebrate the end of a year A successful first, a new Web image has been released of a small star-forming region in the Rho Ophiuchi cloud complex
Artist's impression of the shock wave from a supernova colliding with the filament of the molecular cloud as the Sun forms. Credit: NAOJ

Cosmic Shield: How Our Solar System Survived a Supernova

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The meteorite components enriched in radioactive isotopes formed in the first 100,000 years or so of the formation of the Solar System within the dense filament. The mother filament may have served as a buffer that protected the young sun and helped capture the radioactive isotopes from the supernova shock wave and channel them into the still forming solar system.
On July 1, 2023, the Euclid spacecraft was successfully launched aboard Space-X's Falcon 9 rocket. Its purpose is to explore the mysterious components of the universe, dark matter and dark energy. Credit: Credit: SpaceX

The "Dark Universe" space telescope Euclid is launched on a mission to reveal the deepest mysteries of the cosmos

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The "Dark Universe" Euclid space telescope is launched on a mission to uncover the deepest mysteries of the cosmos
Credit: Breakthrough Listen / Danielle Futselaar

SETI searches for technology signatures: The hunt for extraterrestrial signals at the heart of the Milky Way begins

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Akshay Suresh, a graduate student at Cornell University, is leading an unusual scientific activity - a groundbreaking mission called BLIPSS to detect periodic signals emanating from the center of the Milky Way
Betelgeuse dims over time, with an interstellar cloud seen in the last panel. NASA, ESA and E. Wheatley (STScI)

Beetlejuice: The star continues to behave mysteriously - here's what will happen if it explodes

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At the end of 2019, the light of the star dimmed and went from the brightest in the Orion group to the third brightest. Since then it has returned and become even brighter than before
Planets orbit two suns. Illustration: depositphotos.com

A "Tatoine-like" planet orbiting two suns has been discovered

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An international team of astronomers has announced the discovery of a second planet in the circumbinary system (where planets orbit two suns) of the rare multiple planet BEBOP-1. This planet was discovered using the transit method and was noticed because it passed in front of the brighter of the two stars on different occasions
Gravitational waves. Illustration: depositphotos.com

An innovation in gravitational wave detectors could help decipher cosmic secrets

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A significant development in thin layer technology could possibly improve the sensitivity of gravitational wave detectors.
Hawking radiation from a black hole. Illustration: depositphotos.com

Everything in the universe is doomed to evaporate - Hawking's radiation theory is not limited to black holes

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A team of researchers confirmed Hawking's prediction of evaporating black holes, but extended its application to all large objects in the universe
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
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