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Astronomy news
New theory suggests star mergers produce universe's highest-energy particles
Ultrahigh Energy Cosmic Rays are the highest-energy particles in the universe, whose energies are more than a million times what can be achieved by humans. But while the existence of UHECRs has been known for 60 years, researchers ...
Astronomy
23 hours ago
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Mission accomplished for Integral, ESA's gamma-ray telescope
Today, the European Space Agency's gamma-ray telescope ends its observations. During its 22 years in space, Integral has reshaped our view of the most dramatic events in the universe. The high-energy observatory played a ...
Astronomy
Feb 28, 2025
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Indian spacecraft Aditya-L1 observes massive solar flare
When the sun hurled enormous amounts of radiation into space in an explosive eruption on February 22, 2024, the Indian space probe Aditya-L1, launched a few months earlier, was watching closely—and thus captured the first ...
Astronomy
Feb 28, 2025
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Hubble provides bird's-eye view of Andromeda galaxy's ecosystem
Located 2.5 million light-years away, the majestic Andromeda galaxy appears to the naked eye as a faint, spindle-shaped object roughly the angular size of the full moon. What backyard observers don't see is a swarm of nearly ...
Astronomy
Feb 27, 2025
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Hydrogen cyanide and acetylene detected in a brown dwarf atmosphere for the first time
Using the James Webb Space Telescope (JWST), an international team of astronomers has explored the atmosphere of a nearby brown dwarf binary designated WISE J045853.90+643451.9. As a result, they detected hydrogen cyanide ...
Most powerful gamma ray observatory gets green light
At the start of the year, the European Commission established the Cherenkov Telescope Array Observatory (CTAO) as a European Research Infrastructure Consortium (ERIC), furthering its mission to become the world's largest ...
Astronomy
Feb 27, 2025
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Most powerful gamma ray observatory gets green light
At the start of the year, the European Commission established the Cherenkov Telescope Array Observatory (CTAO) as a European Research Infrastructure Consortium (ERIC), furthering its mission to become the world's largest ...
Astronomy
Feb 27, 2025
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Engineers create first flat telescope lens that can capture color while detecting light from faraway stars
For centuries, lenses have worked the same way: curved glass or plastic bending light to bring images into focus. But traditional lenses have a major drawback—the more powerful they need to be, the bulkier and heavier they ...
Astronomy
Feb 27, 2025
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Image: The Milky Way on the horizon
NASA astronaut Don Pettit used a camera with low light and long duration settings to capture this Jan. 29, 2025, image of the Milky Way appearing beyond Earth's horizon.
Astronomy
Feb 26, 2025
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View the rare 'planet parade' this week and learn why it's happening
The night sky offers us a variety of spectacles throughout the year, but for the remainder of the month, we have front-row seats to see—not one or two—but seven planets at once.
Astronomy
Feb 26, 2025
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Study reveals how rogue planetary-mass objects form in young star clusters
A study published in Science Advances sheds new light on the mysterious origins of free-floating planetary-mass objects (PMOs)—celestial bodies with masses between stars and planets.
Astronomy
Feb 26, 2025
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Study investigates outburst of cataclysmic variable system GK Persei
Chinese astronomers have analyzed the data from NASA's Swift observatory, which extensively observed an outburst of the cataclysmic variable system known as GK Persei. Results of the study, published February 20 on the arXiv ...
One of the most massive black holes in the universe lurks at the center of the Cosmic Horseshoe
In 2007, astronomers discovered the Cosmic Horseshoe, a gravitationally lensed system of galaxies about 5.5 billion light-years away. The foreground galaxy's mass magnifies and distorts the image of a distant background galaxy ...
Astronomy
Feb 25, 2025
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Lucy spacecraft takes its first images of asteroid Donaldjohanson
NASA's Lucy spacecraft has its next flyby target, the small main belt asteroid Donaldjohanson, in its sights. By blinking between images captured by Lucy on Feb. 20 and 22, this animation shows the perceived motion of Donaldjohanson ...
Astronomy
Feb 25, 2025
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Breakthrough enables measurement of local dark matter density using direct acceleration measurements
Dr. Sukanya Chakrabarti, the Pei-Ling Chan Endowed Chair in the College of Science at The University of Alabama in Huntsville (UAH), and her team have pioneered the use of gravitational acceleration measurements of binary ...
Astronomy
Feb 25, 2025
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Solar system's journey through Orion complex 14 million years ago may have altered Earth's climate
An international research team led by the University of Vienna has discovered that the solar system traversed the Orion star-forming complex, a component of the Radcliffe Wave galactic structure, approximately 14 million ...
Astronomy
Feb 25, 2025
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Latest observations help almost fully rule out 2024 YR4 asteroid impact
New observations of 2024 YR4 conducted with the European Southern Observatory's Very Large Telescope (ESO's VLT) and facilities around the world have all but ruled out an impact of the asteroid with our planet. The asteroid ...
Astronomy
Feb 25, 2025
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Multi-line reverberation mapping uncovers hidden dynamics in active galactic nuclei
A research team from the Yunnan Observatories of the Chinese Academy of Sciences has recently published a study in The Astrophysical Journal that examines the inner and outer broad-line regions (BLRs) of active galactic nuclei ...
Astronomy
Feb 25, 2025
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JWST uncovers rare ultra-hot Neptune LTT 9779 b's exotic atmosphere
A team of international researchers including Dr. Jake Taylor from the Department of Physics at the University of Oxford, has used the James Webb Space Telescope (JWST) to explore the exotic atmosphere of LTT 9779 b, a rare ...
Astronomy
Feb 25, 2025
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New dwarf galaxy discovered in the halo of Andromeda galaxy
An international team of astronomers reports the discovery of a new dwarf galaxy, which they have named Pegasus VII. The newfound galaxy, which lies about 2.4 million light years away, was identified in the Ultraviolet Near-Infrared ...
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