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Astrophysics

Black Holes Cosmology Star Formation Cosmic Phenomena Stellar Evolution Interstellar Objects Supernovae Observational Astronomy Orbital Mechanics Celestial Mechanics

Study Traces Small Magellanic Cloud’s Odd Stellar Motions to Past Crash With the Large Magellanic Cloud

Tailored simulations reveal that apparent gas rotation was a viewing illusion, prompting a reassessment of the SMC as a template.

SpaceX Targets Vandenberg Starlink Launch Poised To Push Constellation Past 10,000

Astronomers Press FCC to Block Reflect Orbital’s Space‑Mirror Sunlight Plan

Ancient Star in Pictor II Bears the Imprint of One Weak First-Generation Supernova

New Studies Probe KM3NeT’s Ultra-High-Energy Neutrino, Testing New Physics Against Cosmogenic Models

August 2, 2027 Total Solar Eclipse Will Be the Longest of the Century

Gaia Finds Thousands of Solar Twins, Tying the Sun to a Mass Migration Across the Milky Way

Nature Study Links Superluminous Supernova to Newborn Magnetar Through Relativistic 'Chirp'

Astronomers Tie Distant Star’s Chaotic Fading to Evidence of a Planetary Collision

Eccentric Orbit Confirmed in Neutron Star–Black Hole Merger GW200105

Retired Van Allen Probe A Reenters Over Eastern Pacific After Solar Activity Speeds Orbital Decay

Magnetar ‘Chirp’ Identified in Superluminous Supernova as Short GRB Localized to Tidal-Stream Dwarf

FCC Weighs License for Startup’s Orbital Mirror Test as Scientific Objections Mount

SETI Study Finds Stellar Space Weather May Be Masking Narrowband Technosignatures

LIGO–Virgo–KAGRA Unveil Catalog That More Than Doubles Gravitational-Wave Detections

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

SpaceX Launches 29 Starlink Satellites From Cape Canaveral on Sunday Night

Six-Planet Parade Lines Up Along the Ecliptic as Jupiter Shines Brightest

Astronomers Map 'Teenage' Planetary System TOI-2076, Revealing Photoevaporation at Work

JWST and ALMA Pin Down Nano-Dominated Dust Around Wolf–Rayet Binary WR 112