STELLAR CHEMISTRY

News About Stellar Chemistry

4,992 articles

Using exoplanets to study dark matter
Aug 22, 2025 (SPX)
The researchers examined how dark matter, which makes up 85% of the universe's matter, might affect Jupiter-sized exoplanets over long periods of time. Their th...
Astronomers capture a record 130-year evolution of a dying star
Aug 22, 2025 (SPX)
The research, published in The Astrophysical Journal Letters, tracks 130 years of changes in the "spirograph" Planetary Nebula IC418 - a glowing shell of gas an...
Dark energy black holes align with DESI data to yield realistic neutrino masses
Aug 22, 2025 (SPX)
The DESI collaboration, working from Kitt Peak National Observatory in Arizona, has mapped millions of galaxies to trace how matter and dark energy shaped the c...
Early detection methods refine study of stellar explosions
Aug 22, 2025 (SPX)
A pilot study led by Lluis Galbany of the Institute of Space Sciences (ICE-CSIC) in Barcelona tested a methodology to obtain supernova spectra within 48 hours-o...
First-of-its-kind supernova reveals innerworkings of a dying star
Aug 22, 2025 (SPX)
When massive stars explode, astrophysicists typically find strong signatures of light elements, such as hydrogen and helium. But the newly discovered supernova,...
Supernovae: How to spot them at record speed
Aug 22, 2025 (SPX)
It is crucial, however, to develop protocols and methods that detect them promptly; only in that way can we understand the events and celestial bodies that trig...
Gas streamers reveal how massive young stars gain their mass
Aug 21, 2025 (SPX)
Massive stars, defined as those more than eight times the mass of our sun, form rapidly despite losing material through stellar winds and radiation. Scientists ...
Gaia data maps variable stars across Milky Way clusters
Aug 15, 2025 (SPX)
Open clusters serve as natural laboratories because their stars form together and share distance and age, while variable stars reveal interior physics through b...
Chemists Help Solve Mystery of Missing Space Sulfur
Aug 13, 2025 (SPX)
An international team of researchers including Ryan Fortenberry, an astrochemist at the University of Mississippi; Ralf Kaiser, professor of chemistry at the Un...
Roman mission to map universe expansion using time domain sky survey
Aug 13, 2025 (SPX)
The survey's primary target is type Ia supernovae, whose intrinsic brightness allows precise distance measurements. Roman aims to find tens of thousands of thes...
Magnetic field mapping in Sagittarius C reveals new clues to Milky Way core dynamics
Aug 13, 2025 (SPX)
Sagittarius C is known for its distinctive filaments, dynamic structure, and active stellar nurseries. Using NASA's now-retired Stratospheric Observatory for In...
Milky Way collision path mirrored in distant galaxy pair
Aug 13, 2025 (SPX)
Dr Sarah Sweet from the School of Mathematics and Physics heads Delegate, a collaboration with the Australian National University's Research School of Astronomy...
Highly magnetized galaxies at cosmic noon shrouded in energetic cosmic ray halos
Aug 13, 2025 (SPX)
Understanding galaxy formation and evolution requires data from systems billions of light years away. While optical observations reveal that galaxies began slow...
NASA Hubble captures sharpest view yet of interstellar comet 3I/ATLAS
Aug 08, 2025 (SPX)
Multiple NASA missions, including the James Webb Space Telescope, TESS, the Neil Gehrels Swift Observatory, and a partnership with the W.M. Keck Observatory, wi...
Baby star blast warps its own disk in rare cosmic feedback loop
Aug 06, 2025 (SPX)
Stars form when molecular clouds collapse under gravity, spinning into protoplanetary disks where planets and stars coalesce. Not all the material in the disk i...
New survey charts hundreds of satellite galaxies orbiting dwarfs
Aug 06, 2025 (SPX)
While satellite galaxies around massive systems like the Milky Way have been widely explored, this study turns its focus to the faint companions of dwarf galaxi...
Ultrasmall optical devices rewrite the rules of light manipulation
Aug 05, 2025 (SPX)
The result is a class of ultracompact optical devices that are not only smaller and more efficient than existing technologies, but also dynamically tunable, or ...
Webb reveals hidden galaxy populations in revisited deep field
Aug 05, 2025 (SPX)
This area, known as the MIRI Deep Imaging Survey (MIDIS) region, combines data from both MIRI and the Near-Infrared Camera (NIRCam). The resulting image reveals...
NASA installs key 'sunblock' shield on Roman Space Telescope
Aug 01, 2025 (SPX)
The team is on track to join Roman's outer and inner assemblies this fall to complete the full observatory, which can then undergo further prelaunch testing. "T...
Light driven visual microphone offers new tool for silent sound detection
Aug 01, 2025 (SPX)
"Our method simplifies and reduces the cost of using light to capture sound while also enabling applications in scenarios where traditional microphones are inef...
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