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Astronomy news
If alien signals have already reached Earth, why haven't we seen them?
For decades, scientists have searched the skies for signs of extraterrestrial technology. A study from EPFL asks a sharp question: if alien signals have already reached Earth without us noticing, what should we realistically ...
Astronomy
2 hours ago
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Long-term radio observations probe a relativistic binary pulsar system
Astronomers have analyzed the data from long-term radio observations of a binary pulsar known as PSR J1906+0746. Results of the new study, published February 5 on the arXiv pre-print server, deliver important information ...
How a certain form of dark matter may lead to the generation of cosmological magnetic fields
Tiny highly uniform magnetic fields are known to pervade the universe, influencing various cosmological processes. To date, however, the physical mechanisms underpinning the generation of these fields remain poorly understood. ...
The Hubble tension: How magnetic fields could help solve one of the universe's biggest mysteries
It's well established that the universe is expanding, but there's serious disagreement among scientists over how fast it's happening.
Astronomy
Feb 15, 2026
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Astronomers trace a star's three-year infrared glow to black hole birth
In 2014, a NASA telescope observed that the infrared light emitted by a massive star in the Andromeda galaxy gradually grew brighter. The star glowed more intensely with infrared light for around three years before fading ...
Astronomy
Feb 14, 2026
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Hunting dark matter 'stars' that mimic black holes
Hypothetical dark matter stars known as "boson stars" could leave telltale ripples across the cosmos, offering researchers a new way to probe the invisible forces shaping the universe. In 2019, a strange event was observed ...
Astronomy
Feb 13, 2026
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Recently discovered SN 2024abfl is a low-luminosity Type IIP supernova, astronomers find
An international team of astronomers has conducted photometric and spectroscopic observations of a recently discovered supernova designated SN 2024abfl. Results of the observational campaign, presented February 4 on the preprint ...
Temporal evolution of GRB 240825A afterglow provides insight into origins of optically dark gamma-ray bursts
Researchers from the Yunnan Observatories of the Chinese Academy of Sciences have conducted a new study on the temporal evolution of the afterglow from gamma-ray burst GRB 240825A. The study offers new evidence to better ...
Astronomy
Feb 12, 2026
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Gravitational lensing technique unveils supermassive black hole pairs
Supermassive black hole binaries form naturally when galaxies merge, but scientists have only confidently observed a very few of these systems that are widely separated. Black hole binaries that closely orbit each other have ...
Astronomy
Feb 12, 2026
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Failed supernova provides clearest view yet of a star collapsing into a black hole
Astronomers have watched a dying star fail to explode as a supernova, instead collapsing into a black hole. The remarkable sighting is the most complete observational record ever made of a star's transformation into a black ...
Astronomy
Feb 12, 2026
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Unseen planet or brown dwarf may have hidden 'rare' fading star
One of the longest stellar dimming events ever observed was likely caused by the gigantic saucer-like rings of either an unseen brown dwarf or "super-Jupiter" blocking its host star's light, astronomers say. For decades, ...
Astronomy
Feb 11, 2026
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NASA's SPHEREx mission spots 3I/ATLAS's bright envelope
NASA's Spectro-Photometer for the History of the Universe, Epoch of Reionization and Ices Explorer (SPHEREx) was built for the ambitious purpose of performing an all-sky survey. The data it collects from more than 450 million ...
Astronomy
Feb 11, 2026
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Mira A ejects seven Earth masses, forming a heart-shaped cloud 300 light-years away
Just in time for Valentine's Day, space offers a heart-shaped greeting. The star Mira A, about 300 light-years from Earth, has released material into an expanding cloud of gas and dust resembling a heart. Both the amount ...
Astronomy
Feb 11, 2026
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Subaru observations suggest an intrinsic gap in NGC 5466's tidal stream
Astronomers from the National Astronomical Observatory of Japan (NAOJ) and elsewhere have used the Subaru Telescope to perform deep imaging observations of a distant globular cluster known as NGC 5466. The observational campaign ...
Old galaxies in a young universe?
The standard cosmological model (present-day version of "Big Bang," called Lambda-CDM) gives an age of the universe close to 13.8 billion years and much younger when we explore the universe at high-redshift. The redshift ...
Hubble captures light show around rapidly dying star
This stunning image from NASA's Hubble Space Telescope reveals a dramatic interplay of light and shadow in the Egg Nebula, sculpted by freshly ejected stardust. Located approximately 1,000 light-years away in the constellation ...
Astronomy
Feb 10, 2026
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Discovery of a possible pulsar in the Milky Way's center could enable unprecedented tests of General Relativity
Researchers from Columbia University and Breakthrough Listen, a scientific research program aimed at finding evidence of civilizations beyond Earth, have published new results from the Breakthrough Listen Galactic Center ...
Astronomy
Feb 10, 2026
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A possible first-ever Einstein probe observation of a black hole tearing apart a white dwarf
On July 2, 2025, the China-led Einstein Probe (EP) space telescope detected an exceptionally bright X-ray source whose brightness varied rapidly during a routine sky survey. Its unusual signal immediately set it apart from ...
Astronomy
Feb 10, 2026
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How giant galaxies could form just 1.4 billion years after the Big Bang
The existence of massive, elliptical galaxies in the early universe has puzzled astronomers for two decades. An international team led by Nikolaus Sulzenauer and Axel Weiß from the Max Planck Institute for Radio Astronomy ...
Astronomy
Feb 10, 2026
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Experiment relies on pulsars to probe dark matter waves
Dark matter is a type of matter that is predicted to make up most of the matter in the universe, yet it is very difficult to detect using conventional experimental techniques, as it does not emit, absorb, or reflect light. ...
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New tool could reduce collision risk for Earth-observation satellites
New catalyst unlocks aluminum's ability to switch between oxidation states
New species of ancient crocodile named in honor of Welsh school teacher
Porous material uses green and blue light to repeatedly store and release CO₂
