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Astronomy news
Study investigates very metal-poor star HE 2315−4240
Based on the data from the Magellan-Clay telescope in Chile, astronomers have performed a chemo-dynamical study of a very metal-poor star known as HE 2315−4240. Results of the study, published on the preprint server arXiv, ...
Event horizon: After photographing black holes, scientists are now making a movie
The first moving images of a black hole could reveal swirls of plasma and collapsing stars, deepening our understanding of the universe.
Astronomy
Oct 11, 2024
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'Inside-out' galaxy growth observed in the early universe
Astronomers have used the NASA/ESA James Webb Space Telescope (JWST) to observe the 'inside-out' growth of a galaxy in the early universe, only 700 million years after the Big Bang.
Astronomy
Oct 11, 2024
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Astronomers find Webb data conflict with reionization models
Reionization is a critical period when the first stars and galaxies changed the physical structure of their surroundings, and eventually the entire universe. Established theories state that this epoch ended around 1 billion ...
Astronomy
Oct 10, 2024
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'Islands' of regularity discovered in the famously chaotic three-body problem
When three massive objects meet in space, they influence each other through gravity in ways that evolve unpredictably. In a word: Chaos. That is the conventional understanding. Now, a researcher from the University of Copenhagen ...
Astronomy
Oct 10, 2024
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Dark energy: Could the mysterious force we think of as constant actually vary over cosmic time?
,As I finished my Ph.D. in 1992, the universe was full of mystery—we didn't even know exactly what it is made of. One could argue that cosmologists had made little progress in our understanding of these basic facts since ...
Astronomy
Oct 10, 2024
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A sharper view of the Milky Way with Gaia and machine learning
A group of scientists led by the Leibniz Institute for Astrophysics Potsdam (AIP) and the Institute of Cosmos Sciences at the University of Barcelona (ICCUB) have used a novel machine learning model to process data for 217 ...
Astronomy
Oct 10, 2024
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Astronomers race to capture image of exoplanet near star
Planet AF Lep b is a world of firsts. In 2023, it was the lowest-mass planet outside our solar system to be directly observed and have its mass measured using astrometry. This is a technique that charts the subtle movements ...
Astronomy
Oct 9, 2024
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Black hole destroys star, goes after another
A massive black hole has torn apart one star and is now using that stellar wreckage to pummel another star or smaller black hole that used to be in the clear.
Astronomy
Oct 9, 2024
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Astronomers discover dozens of massive stars launched from young star cluster R136
Astronomers have used data from the European Gaia Space Telescope to discover 55 high-speed stars launched from the young star cluster R136 in the Large Magellanic Cloud, a satellite galaxy of the Milky Way. This increases ...
Astronomy
Oct 9, 2024
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Team discovers three new magnetic and helium-enriched hot subdwarf stars
An international team of astronomers reports the discovery of three new helium-enriched hot subdwarf stars with strong magnetic fields. The finding, made with the Southern African Large Telescope (SALT), is detailed in a ...
NASA's Roman space telescope's 'exoskeleton' whirls through major test
A major component of NASA's Nancy Grace Roman Space Telescope just took a spin on the centrifuge at NASA's Goddard Space Flight Center in Greenbelt, Maryland. Called the Outer Barrel Assembly, this piece of the observatory ...
Astronomy
Oct 8, 2024
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Anti-glitches detected in gamma-ray pulsar PSR J1522-5735
By analyzing the data from NASA's Fermi Gamma-ray Space Telescope, Russian astronomers have detected anti-glitches in a gamma-ray pulsar designated PSR J1522-5735. The discovery, published September 28 on the pre-print server ...
New study eases concerns over possible 'doomsday' asteroid swarm
Astronomers have good news about potentially hazardous asteroids lurking near our planet: There aren't as many as we thought.
Astronomy
Oct 7, 2024
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The GALAH fourth data release provides vital data on one million stars in the Milky Way
For the past 10 years, Australia's ARC Center of Excellence in All Sky Astrophysics in 3 Dimensions (ASTRO 3D) has been investigating star formation, chemical enrichment, migration, and mergers in the Milky Way with the Anglo-Australian ...
Astronomy
Oct 7, 2024
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The Milky Way might be part of an even larger structure than Laniakea
If you want to pinpoint your place in the universe, start with your cosmic address. You live on Earth->Solar System->Milky Way Galaxy->Local Cluster->Virgo Cluster->Virgo Supercluster->Laniakea. Thanks to new deep sky surveys, ...
Astronomy
Oct 7, 2024
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Primordial holes could be hiding in planets, asteroids and here on Earth
Small primordial black holes (PBHs) are one of the hot topics in astronomy and cosmology today. These hypothetical black holes are believed to have formed soon after the Big Bang, resulting from pockets of subatomic matter ...
Astronomy
Oct 7, 2024
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Discovery of most distant rotating disk galaxy challenges current formation theories
Researchers have discovered the most distant Milky-Way-like galaxy yet observed. Dubbed REBELS-25, this disk galaxy seems as orderly as present-day galaxies, but we see it as it was when the universe was only 700 million ...
Astronomy
Oct 7, 2024
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Astronomers investigate the nature of a fast-spinning intermediate polar
Using various X-ray space observatories, astronomers from Columbia University in New York and elsewhere have investigated CTCV J2056–3014—an intermediate polar containing one of the fastest-spinning white dwarfs. Results ...
Astronomers detect multiple extended tidal tails in an old globular cluster
By analyzing the data from various astronomical surveys, astronomers have investigated an old globular cluster known as NGC 288. As a result, they detected multiple extended tidal tails associated with this cluster. The finding ...
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Gazing at your dog can connect your brains, research suggests
Targeting 'undruggable' diseases: Researchers reveal new levels of detail in targeted protein degradation
Intra-molecular distances in biomolecules measured optically with Ångström precision
