[ESA] The new observations provide the most detailed mid-infrared view yet of the highly evolved star IRS 3, which is located just 0.55 light-years from Sagittarius A*, the Milky Way […]
Interstellar
![Where the Dyson sphere on and off fits of M77 differ most, and how new photometry changes the comparison. In each panel, the upper sub-panel shows the median posterior AGENT-on (solid red) and AGENT-off (dashed blue) model spectra with shaded 16–84% posterior bands and the fitted photometry overplotted (open black circles), while the lower sub-panel shows the percent deviation of the AGENT-on model relative to the AGENT-off model, with the shaded band giving the 1σ uncertainty propagated in quadrature from the two independent fits. -- [astro-ph.GA]](https://i0.wp.com/astrobiology.com/wp-content/uploads/2026/08/The-G.png?resize=1200%2C713&ssl=1)
Posted inSETI & Technosignatures
The Ĝ Infrared Search for Extraterrestrial Civilizations with Large Energy Supplies. V. When Galaxies Glow with Industry
[astro-ph.GA] We present the most robust stellar population synthesis (SPS)-based search for galaxy-spanning technological waste heat to date, applied to 129 nearby galaxies spanning a wide range of spectral energy […]
Posted inAstrochemistry
Astrochemistry: A Cosmic Recycling System In Action In The Helix Nebula
[Northwestern University] An international team of scientists, including Northwestern University astrophysicists, has captured an unprecedented view of a dying star’s remains in the act of being recycled.
![Observed spectra compared to laboratory data for CO (left), 13CO2 (middle), and H2O (right) ices on carbonaceous dust analogs. -- [astro-ph.GA]](https://i0.wp.com/astrobiology.com/wp-content/uploads/2026/08/Molecule-specific.png?resize=1200%2C606&ssl=1)
Posted inAstrochemistry
Molecule-specific Diffusion And Desorption Of Interstellar Ices On Carbonaceous Dust
[astro-ph.GA] Interstellar ices form on dust grains in the coldest regions of molecular clouds and preserve key volatile reservoirs that could be incorporated into protoplanetary disks during star and planet […]
![Chemical structure of the aromatic nitriles cyanobenzene, d5-cyanobenzene, 1,2-dicyanobenzene, 1,3- dicyanobenzene and 1,4-dicyanobenzene -- [astro-ph.SR]](https://i0.wp.com/astrobiology.com/wp-content/uploads/2026/08/Infrared.png?resize=1200%2C714&ssl=1)
Posted inAstrochemistry
Infrared Spectroscopy and Photochemistry of Aromatic Nitriles in Para-Hydrogen Matrices
[astro-ph.SR] Motivated by recent detections of several aromatic nitriles in Taurus Molecular Cloud-1, we report laboratory and theoretical investigations of the vibrational spectroscopy and photochemistry of singly and doubly cyano-substituted […]
Posted inAstrochemistry
First Detection Of C2H+ In The Interstellar Medium
[astro-ph.GA] Despite the detection of nearly 350 molecules in the interstellar medium, almost half of which are carbon chains, the pathways that build molecular complexity remain poorly understood.
Posted inAstrochemistry
Astrochemistry: Dust And Water Spotted Close To A Giant Black Hole
[ESA]. Using the NASA/ESA/CSA James Webb Space Telescope, an international team of astronomers have discovered that dust and water can form and survive surprisingly close to the supermassive black hole […]
Posted inAstrochemistry
Photochemistry Of Interstellar Ice Forming Complex Organic Molecules
[astro-ph.GA] Astrochemistry is a well-established multidisciplinary field devoted to study molecules in space. While most astrochemists are oriented to observe molecules in the gas phase and reproduce their abundances by […]
Posted inStellar Cartography
Stellar Cartography: SDSS-V Releases Latest All-sky Spectra Including First Optical Spectra From The Southern Hemisphere
[Carnegie Institution for Science] The Sloan Digital Sky Survey V (SDSS-V) has announced its twentieth public data release (DR20), delivering a dramatic expansion of the Milky Way Mapper (MWM) scientific […]
Posted inAstronomy & Telescopes
Astrochemistry In Action: JWST View Of The Carina Nebula
[ESA] This NASA/ESA/CSA James Webb Space Telescope Picture of the Month takes us to a fantastical realm within our home galaxy, where piercing starlight and billowing winds sculpt dust clouds […]