News About Stellar Chemistry
December 16, 2025
Gemini North tracks changing glow of interstellar Comet 3IATLAS

Tucson AZ (SPX) Dec 16, 2025
Gemini North has obtained new color images of Comet 3I/ATLAS after the interstellar object emerged from behind the Sun on its outbound trajectory from the Solar System. Using the Gemini Multi-Object Spectrograph (GMOS) on the Gemini North telescope at Maunakea in Hawaii, scientists observed the comet on 26 November 2025 to study how it has evolved since perihelion. The observations were conducted as part of a Shadow the Scientists session, an outreach program that connects students and the public ... read more
Roman infrared survey to chart hidden structure of Milky Way
Greenbelt MD (SPX) Dec 12, 2025
NASA's Nancy Grace Roman Space Telescope team has released detailed plans for a major survey that will reveal our home galaxy, the Milky Way, in unprecedented detail. In one month of observations sp ... more
Solar ghost particles seen flipping carbon atoms in underground detector
Berlin, Germany (SPX) Dec 11, 2025
Scientists have recorded solar neutrinos changing carbon-13 into nitrogen-13 inside the SNO+ detector in Canada, marking the first observation of this specific interaction between neutrinos and carb ... more
Record gamma ray burst traced to dusty massive host galaxy
Los Angeles CA (SPX) Dec 09, 2025
Gamma ray bursts rank among the most energetic explosions known, usually flashing and fading within seconds or minutes, but on 2 July 2025 astronomers detected GRB 250702B, a source that produced re ... more
Shaping quantum light expands options for future technologies
Berlin, Germany (SPX) Dec 12, 2025
Researchers from the School of Physics at the University of the Witwatersrand, working with collaborators at the Universitat Autonoma de Barcelona, report that controlling the structure of photons i ... more
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Roman space telescope passes key construction milestone ahead of launch window
Los Angeles CA (SPX) Dec 12, 2025
NASA has completed assembly of the Nancy Grace Roman Space Telescope, joining the inner and outer sections of the observatory in the largest clean room at the agency's Goddard Space Flight Center in ... more
Milky Way chemical map shows diverse paths to galactic evolution
London, UK (SPX) Dec 12, 2025
A new analysis of simulated Milky Way analogues links the galaxy's unusual chemical patterns to how its disc formed and evolved over time. The work examines why stars near the Sun split into two dis ... more
ESO signs MOSAIC deal for Extremely Large Telescope spectrograph
Potsdam, Germany (SPX) Dec 12, 2025
The European Southern Observatory ESO has signed an agreement with a large international consortium for the design and construction of the Multi-Object Spectrograph MOSAIC, an instrument for the Ext ... more
UChicago survey expands weak lensing test of the dark universe
Chicago IL (SPX) Dec 12, 2025
Astrophysicists at the University of Chicago have used data from the Dark Energy Camera (DECam) to extend weak gravitational lensing measurements to a new region of the sky, testing how well the sta ... more
Nova images capture complex stellar blast behavior
Los Angeles CA (SPX) Dec 09, 2025
An international group of astronomers led by Texas Tech University assistant professor Elias Aydi published a paper titled Multiple outflows and delayed ejections revealed by early imaging of novae ... more
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Cosmic rays drive urgent search for better protection before crewed trips to Mars
Norwich, UK (SPX) Dec 03, 2025
The first step on the Moon was one of humanity's most exciting accomplishments. Now scientists are planning return trips - and dreaming of Mars beyond. Next year, Nasa's Artemis II mission wil ... more
Gravitational wave signals reveal dark matter around black holes
Berlin, Germany (SPX) Dec 05, 2025
A research team at the University of Amsterdam has developed a new general-relativistic model that shows how gravitational waves from black holes can be used to reveal dark matter and constrain its ... more
New mass measurements refine X ray burst reaction flow
Tokyo, Japan (SPX) Dec 05, 2025
A team at the Institute of Modern Physics of the Chinese Academy of Sciences has directly measured the masses of the short lived nuclei phosphorus-26 and sulfur-27, providing data needed to determin ... more
JWST spots early Milky Way style spiral galaxy Alaknanda
Los Angeles CA (SPX) Dec 05, 2025
Astronomers using NASAs James Webb Space Telescope have identified a massive spiral galaxy that resembles the Milky Way but existed when the Universe was only about 1.5 billion years old. Named Alak ... more
Hot dust near a nearby star system
Tucson AZ (SPX) Dec 03, 2025
Seventy light-years from Earth, astronomers studying the star Kappa Tucanae A have identified dust heated to more than 1,000 degrees Fahrenheit orbiting very close to the star, where such material s ... more
DEVILS survey maps how galaxy environments shape their evolution

Sydney, Australia (SPX) Nov 27, 2025
A team at the International Centre for Radio Astronomy Research has released new data from the Deep Extragalactic Visible Legacy Survey showing that a galaxy's local environment has a major impact on how it evolves. DEVILS is an extensive galaxy evolution survey that combines observations from multiple ground and space-based telescopes to analyse hundreds of thousands of galaxies. It focuses on systems seen as they were up to five billion years ago and tracks how their properties change to the pre ... read more
Gamma-ray observation may provide first direct evidence for dark matter
Tokyo, Japan (SPX) Nov 26, 2025
In the 1930s, astronomer Fritz Zwicky noted that galaxies moved faster than expected for their visible mass, suggesting an unseen matter now known as dark matter. Since then, dark matter remained un ... more

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High-power optical vortex beams targeted for future light-matter research across Europe
Berlin, Germany (SPX) Nov 25, 2025
Tampere University has launched a pan-European doctoral network dedicated to the development of high-power optical vortex beams, securing 4.4 million euros in funding from the European Union's Marie ... more
Astrophysics study sets new bounds on speed of light across photon energies
Berlin, Germany (SPX) Nov 24, 2025
In 1887, Michelson and Morley conducted a pivotal experiment, searching for evidence that Earth's motion could alter the speed of light. Their null result was instrumental for Einstein, who soon pro ... more
White dwarf magnetic field study reveals inner accretion dynamics
Cambridge, MA (SPX) Nov 21, 2025
Some 200 light years from Earth, the core of a dead star is circling a larger star in a macabre cosmic dance. The dead star is a type of white dwarf that exerts a powerful magnetic field as it pulls ... more
NASA's Mars Spacecraft Capture Images of Comet 3I/ATLAS
Pasadena CA (JPL) Nov 21, 2025
Two orbiters and a rover captured images of the interstellar object - from the closest location any of the agency's spacecraft may get - that could reveal new details. At the start of October, ... more
Comet sparks scientific fascination, online furor over 'alien' origins
Washington (AFP) Nov 20, 2025
A flying piece of cosmic rock or an alien threat? Comet 3I/ATLAS is hurtling through our solar system and captivating scientists and internet users alike, even prompting Kim Kardashian to ask NASA for answers. ... more
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