STELLAR CHEMISTRY

News About Stellar Chemistry

4,992 articles

LHAASO reveals hidden cosmic engines in high-energy Milky Way survey
Jul 02, 2025 (SPX)
Cosmic rays, high-speed charged particles from deep space, carry clues to powerful astrophysical sources like supernova remnants, pulsar wind nebulae, and young...
Mini halo found around distant galaxy cluster reveals early cosmic particle activity
Jun 30, 2025 (SPX)
This mini halo is the most distant ever observed, surpassing the previous record by a factor of two. Its discovery confirms that galaxy clusters have been envel...
Rice researchers search for ultralight dark matter using a magnetically levitated particle
Jun 26, 2025 (SPX)
New research published in the American Physical Society June 24 and led by Rice University physicist Christopher Tunnell and postdoctoral researcherDorian Amara...
NASA working to fix space station's NICER X-ray telescope
Jun 24, 2025 (UPI)
NASA engineers are working to fix the problem after pausing the telescope's operations on June 17, when its ability to track celestial objects degraded, accordi...
Groundbreaking Vera Rubin Observatory reveals first images
Jun 23, 2025 (AFP)
More than two decades in the making, the giant US-funded telescope sits perched at the summit of Cerro Pachon in central Chile, where dark skies and dry air pro...
Thousand-color galactic map reveals intricate structure of Sculptor Galaxy
Jun 21, 2025 (SPX)
"Galaxies are incredibly complex systems that we are still struggling to understand," said ESO researcher Enrico Congiu, who led the new study published in Astr...
A cosmic map emerges as astronomers trace missing matter to intergalactic space
Jun 17, 2025 (SPX)
Although scientists have theorized that ordinary matter-composed mainly of protons-was hidden in hot, low-density gas between galaxies, previous efforts using X...
Detection of ancient water ice suggests interstellar origins predating the Sun
Jun 17, 2025 (SPX)
The researchers focused on the deuteration ratio-the abundance of water molecules where one hydrogen is replaced by deuterium, forming HDO, or semi-heavy water....
UAH researcher unveils new map of Milky Way galaxy in atomic hydrogen
Jun 12, 2025 (SPX)
The findings are being presented at the 246th meeting of the American Astronomical Society in Anchorage, Alaska, on June 8-12, in conjunction with Michigan Stat...
Where did cosmic rays come from? MSU astrophysicists are closer to finding out
Jun 11, 2025 (SPX)
Among the many thousands of known exoplanets there is a large population of compact systems that each have multiple planets orbiting very close to their central...
NASA's IMAP Spacecraft Readied for Launch Preparations
Jun 04, 2025 (SPX)
Over the next several months, technicians will prepare the IMAP observatory for launch. Some key upcoming milestones include loading the spacecraft with propell...
Milky Way may not be destroyed in galactic smash-up after all
Jun 02, 2025 (AFP)
But don't worry either way: no galactic smash-up is expected for billions of years, long after our ageing Sun will have burnt away all life on Earth. The Milky ...
Cosmic clash sees quasar-powered galaxy disrupt stellar birth in deep space
May 22, 2025 (SPX)
Using data from the European Southern Observatory's Very Large Telescope (VLT) and the Atacama Large Millimeter/submillimeter Array (ALMA), researchers observed...
When lightning leaders collide gamma rays burst from Earth's atmosphere
May 22, 2025 (SPX)
TGFs are extremely brief but intense bursts of gamma rays, lasting mere microseconds, and are generally difficult to detect. The study, soon to appear in Scienc...
Charting Our Galaxy's Extreme Center
May 21, 2025 (SPX)
However, analyzing this area is challenging, because we do not have a clear top-down view of the Milky Way. UConn's Milky Way Laboratory, headed by the Departme...
Do photons wear out? An astrophysicist explains light's ability to travel vast cosmic distances without losing energy
May 21, 2025 (SPX)
"That's the Pinwheel galaxy," I said. The name is derived from its shape - albeit this pinwheel contains about a trillion stars. The light from the Pinwheel tra...
Gas location not volume key to star formation in galaxies
May 21, 2025 (SPX)
The study, led by PhD candidate Seona Lee from The University of Western Australia's ICRAR node, utilized data from around 1,000 galaxies mapped by CSIRO's ASKA...
Protoplanetary Disk Candidates Detected in Milky Way's Central Molecular Zone
May 19, 2025 (SPX)
The team performed the most sensitive and complete survey to date of three major molecular clouds within the CMZ, revealing more than five hundred dense cores -...
Dark Matter Origin Linked to High-Energy Particle Collisions in Early Universe
May 15, 2025 (SPX)
Published in Physical Review Letters, the study posits that dark matter formed when these particles, initially moving at relativistic speeds, lost energy and ga...
Galactic Turbulence Simulations Challenge Long-Held Theories
May 14, 2025 (SPX)
The findings indicate that magnetic fields significantly alter how turbulent energy cascades through the interstellar medium, suppressing small-scale motions wh...
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