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Astronomy news
Rapid-response protocol promises to reveal supernovae only hours after they explode
Supernovae appear to our eyes—and to astronomical instruments—as brilliant flashes that flare up in the sky without warning, in places where nothing was visible just moments before. The flash is caused by the colossal ...
Astronomy
19 minutes ago
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Parker Solar Probe confirms decades-old theoretical models about magnetic reconnection
New research led by Southwest Research Institute (SwRI) has confirmed decades-old theoretical models of magnetic reconnection, the process that releases stored magnetic energy to drive solar flares, coronal mass ejections ...
Astronomy
8 hours ago
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Why did Cosmic Noon galaxies emit so many cosmic rays?
Answers to some of cosmology's most pressing questions are obscured by simple dust. It concerns the Cosmic Noon, a period of time that began around 2 billion years after the Big Bang, when nearly all galaxies experienced ...
Astronomy
11 hours ago
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Hubble examines low brightness, high interest galaxy
This NASA/ESA Hubble Space Telescope image zooms in on the feathery spiral arms of the galaxy NGC 45, which lies just 22 million light-years away in the constellation Cetus (the Whale).
Astronomy
11 hours ago
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Excavating Eridu: Observations explore nature of massive ancient galaxy
By analyzing the data from the James Webb Space Telescope (JWST) and the Hubble Space Telescope (HST), astronomers from the University of Wisconsin-Madison and elsewhere have probed the properties of a massive and old galaxy ...
Dark star clusters or extreme dwarf galaxies? Astrophysicists revisit Ursa Major III's true nature
Ursa Major III, the faintest object in our galaxy, orbits the Milky Way at a distance of more than 30,000 light years. Until now, it was considered a dwarf galaxy, thought to consist mainly of dark matter due to its large ...
Astronomy
Aug 15, 2025
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Intergalactic experiment: Researchers hunt for mysterious dark matter particle with clever new trick
Physicists from the University of Copenhagen have begun using the gigantic magnetic fields of galaxy clusters to observe distant black holes in their search for an elusive particle that has stumped scientists for decades.
Astronomy
Aug 15, 2025
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Observations investigate ultraluminous X-ray sources in the galaxy NGC 5813
Using NASA's Chandra and ESA's XMM-Newton space observatories, Indian astronomers have explored the population of ultraluminous X-ray sources in the galaxy NGC 5813, which resulted in the detection of a new source of this ...
Astronomers discover new type of supernova triggered by black hole-star interaction
Astronomers have discovered what may be a massive star exploding while trying to swallow a black hole companion, offering an explanation for one of the strangest stellar explosions ever seen.
Astronomy
Aug 14, 2025
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Scientists use Earth's shadow to hunt for alien probes
For decades, astronomers have searched for signs of extraterrestrial intelligence using radio telescopes and optical instruments, scanning the skies for artificial signals. Now, researchers are taking a different approach, ...
Astronomy
Aug 13, 2025
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NASA Roman core survey will trace cosmic expansion over time
For thousands of years, humanity viewed the skies as unchanging, except for a few "wandering stars" (that we now know are planets). As we improved our ability to perceive the cosmos with light-gathering telescopes and electronic ...
Astronomy
Aug 13, 2025
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Gaia's variable stars: A new map of the stellar life cycle
One of the best places to study stars is inside "open clusters," which are groups of stars that formed together from the same material and are bound together through gravity.
Astronomy
Aug 13, 2025
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IXPE's 'heartbeat black hole' measurements challenge current theories
An international team of astronomers using NASA's IXPE (Imaging X-ray Polarimetry Explorer), has challenged our understanding of what happens to matter in the direct vicinity of a black hole.
Astronomy
Aug 13, 2025
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Astronomers spot the 'Eye of Sauron' in deep space
A stunning new image of a cosmic jet has helped astronomers unlock the mystery behind the unusually bright emission of high-energy gamma rays and neutrinos from a peculiar celestial object. The source is a blazar—a type ...
Astronomy
Aug 12, 2025
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'Pop III.1' model explains origins of black holes and early cosmic ionization
A new theoretical study by University of Virginia astrophysicist Jonathan Tan, a research professor with the College and Graduate School of Arts & Sciences' Department of Astronomy, proposes a comprehensive framework for ...
Astronomy
Aug 12, 2025
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Early galaxies—or something else? Webb uncovers 300 unusually bright objects
In a new study, scientists at the University of Missouri looked deep into the universe and found something unexpected. Using infrared images taken from NASA's powerful James Webb Space Telescope (JWST), they identified 300 ...
Astronomy
Aug 12, 2025
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Astronomers detect most distant fast radio burst, just 3 billion years after Big Bang
Using the MeerKAT radio telescope, an international team of astronomers have discovered a new fast radio burst, which received designation FRB 20240304B. The measured redshift of FRB 20240304B indicates that it is the most ...
Astronomers detect most distant fast radio burst ever
Fast radio bursts (FRBs) last around a millisecond, and in doing so, encode otherwise unattainable information on the plasma which permeates our universe, providing insights into magnetic fields and gas distributions.
Astronomy
Aug 11, 2025
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Slowly spinning dark matter halos may explain mysterious 'little red dots' in the early universe
Astronomers at the Center for Astrophysics | Harvard & Smithsonian have proposed a new explanation for some of the universe's most puzzling early galaxies, nicknamed "little red dots."
Astronomy
Aug 11, 2025
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Ultra-metal-poor star discovered in Milky Way's halo
By analyzing the data from ESA's Gaia satellite, astronomers from the University of Chicago, Illinois and elsewhere, have identified a new ultra-metal-poor star. The newfound star, designated GDR3_526285, turns out to be ...
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