Astrophysics

Cosmology Observational Astronomy Cosmic Phenomena Stellar Evolution Celestial Mechanics Orbital Mechanics Black Holes Galaxies Star Formation Planetary Science

Tianwen‑2 Reaches Kamoʻoalewa and Begins Close‑Range Survey

The probe's July arrival at about 20 kilometers revealed a much smaller asteroid, a finding that will shape China’s sampling approach.

Apophis Declared Safe for 2029 Flyby as Global Visibility Maps Are Released

Euclid Finds 31 Quasars From the Universe’s First 700 Million Years

TESS Reveals a 40,000‑Light‑Year Planet by Chance Using Einstein’s Microlensing

VLT Confirms Ancient, Non‑Solar Chemistry in Interstellar Comet 3I/ATLAS

Study Projects Last Land Plants Will Survive About 1.84–1.87 Billion Years

ZWO Astronomy Photographer of the Year Releases 29-Image Shortlist

Stories older than 24h

Commercial Robot Reaches Orbit to Rescue NASA’s Swift Observatory

Hubble Releases New Images That Map Young Stars and Ancient Clusters

Nearby Super‑Earth Candidate GJ 3378 b Reclassified as Likely Rocky World

JWST Detects Atmosphere and Reheating of Giant Planet Orbiting a White Dwarf

TESS Detects First Planet by Gravitational Microlensing

Launch Failure Delays Mission to Rescue NASA’s Swift Telescope

Reanalysis Lowers Mass of Nearby Exoplanet GJ 3378b and Places It in Habitable Zone

Rubin Observatory Begins 10‑Year Survey of the Southern Sky

X1.1 Solar Flare Causes Radio Blackouts as CME Prompts G2 Geomagnetic Storm Watch

X‑Ray Echoes Push Two Outer Milky Way Arms About 10% Farther Out

NASA Delays Launch of Robotic Rescue for Swift Telescope

CERN Switches Off LHC to Begin Multi‑Year Upgrade to High‑Luminosity Machine

Euclid Releases Unprecedented High-Resolution Mosaic of the Milky Way Bulge