Astrophysics

Orbital Mechanics High-Energy Astrophysics Light Phenomena Meteors Multi-Messenger Astronomy Meteor Showers Comets Planetary Motion Moon Light and Shadow

Hubble and Webb Reveal Hidden Stars Inside Carina’s 'Cat’s Head' Pillar

Matched visible and infrared views let astronomers measure how radiation from nearby massive stars sculpts the pillar, exposing infant stars.

Webb Reveals Turbulent Stellar Nursery N159 in the Large Magellanic Cloud

Dense Early Star Clusters Could Build Black-Hole Seeds Through Repeated Collisions

Researchers Calculate First Green Star Among Colorful White Dwarfs

Milky Way Minispiral Found to Be Metal-Rich Near Sgr A*

Astronomers Identify 'Treble Clef' as a Radio Phoenix Revived by a Cluster Collision

Parker Probe Detects Scale-Dependent Magnetic Rotation Reversal in Solar Wind

Hubble Image Reveals Galaxy Cluster That Looks Like a Giant Smiley

Most Distant Fast Radio Burst Traced to Tiny Star-Forming Galaxy at Redshift 2

JWST Sees Variable Water Clouds on Nearby Brown Dwarf as SPHEREx Maps Thousands

ESA’s SMILE Satellite Launches to Map Earth’s Magnetosphere

Tonight the Moon Will Hide Regulus Across Parts of the Americas

Astronomers Unveil Most Compact Known 3+1 Quadruple-Star System

Saturn's Rings Seem to Vanish in Rare Edge-On Alignment on Nov. 23–24

Beaver Moon Supermoon Tonight Is 2025’s Largest as Perigee Hits 23:27 Italian Time

Orionids Peak Oct. 22–23 With Dark Skies Boosting Pre-Dawn Viewing

Saturn Reaches Opposition Sunday With Rare Titan Shadow Transit Overnight

VLT Spectra Reveal Gas Ring Around V Sagittae, Hinting at Likely Nova in Coming Years

Hikers Asked to Join Hunt for Meteorites in Scottish Highlands After July Fireball

Water Vapor Spotted in Tail of Interstellar Comet 3I/ATLAS