Science ❯ Astrophysics

Chemical Composition

Molecular Chemistry Element Formation Metallicity Stellar Evolution Isotopes Nitrogen in Early Universe Dioxide of Carbon Carbon Dioxide Polycyclic Aromatic Hydrocarbons Volatile Elements Water in Space Nitrogen in Galaxies Carbon-poor Comets Nebular Gas Atmospheric Analysis Molecular Bands Solar System Comets Cometary Studies Spectroscopy Vaporized Metals Spectrometry Iron-Rich Gases Atmospheric Elements

JWST Confirms MoM‑z14, Most Distant Galaxy Yet, at Redshift 14.44

An unusual mix of extreme brightness, compactness, nitrogen emission challenges standard timelines for early enrichment.

Giant Metal-Bearing Cloud Tied to Hidden Companion Explains Months-Long Dimming of Sun-Like Star

JWST Maps Giant Dual Helium Tails Streaming From Ultra-Hot Jupiter WASP-121 b

Astronomers Report Most Metal-Poor Star Yet From the Large Magellanic Cloud

Hubble Spots White Dwarf Devouring Icy, Nitrogen-Rich Exo‑Pluto Fragment