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Stellar Phenomena

Supernovae Coronal Mass Ejections Nova Explosions Red Supergiants Luminous Fast Blue Optical Transients Magnetars Gas Bubbles Galactic Cirrus M Dwarf Stars Binary Star Systems Binary Stars Planetary Systems TRAPPIST-1 Companion Stars Extreme Nuclear Transients Flares and CMEs Hypervelocity Stars Flares Protoplanetary Disks Supernova Remnants Nebulae Solar Dynamics Betelgeuse Dead Stars Wolf-Rayet Stars Shockwaves Shock Waves Supernovae and Kilonovae Superluminous Supernovas Fast Blue Optical Transients Eclipses Kilonovae X-ray Emission Nova White Dwarf Stars Planetary Nebulae Sun Star Observations Supernova Astrospheres Dimming Stars White Dwarfs Shock Breakout Events Black Holes Stellar Mergers

Astronomers Report Strong X-Ray Polarization From Magnetar That May Show Vacuum Birefringence

This result could test quantum electrodynamics in ultra-strong magnetic fields.

Off‑Axis Relativistic Jet Lights Up Dwarf Galaxy in Unusual Transient

New JWST Findings Complicate Origins of Little Red Dots

Chandra Maps Hot Astrosphere Around Young Sun-Like Star HD 61005

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

Webb Confirms Most Distant Supernova Yet, SN Eos at Redshift 5.133

New Spectrograph Reveals Mars-Mass Iron Bar in the Ring Nebula

Astronomers Spot Long-Lived Bow Shock Around Diskless White Dwarf, Defying Models

Caltech Team Reports Candidate 'Superkilonova' From August Gravitational-Wave Alert

Brightest Blue Cosmic Flash Linked to Black Hole Tearing Apart a Massive Star, Studies Find

Astronomers Report Candidate 'Superkilonova' Linked to 2025 Gravitational-Wave Alert

Early JWST Campaign Finds Stellar Noise Hindering TRAPPIST-1e Atmosphere Test

Webb Maps Four Dust Spirals and Confirms Third Star in Rare Apep Wolf-Rayet System

Astronomers Confirm First Coronal Mass Ejection From Another Star

Astronomers Confirm First Coronal Mass Ejection From a Star Beyond the Sun

Webb Unveils Red Spider Nebula’s Closed Lobes, Iron‑Traced Jet, and Shrouded Core

Astronomers Unveil Largest Low-Frequency Radio Color Map of the Milky Way

Hubble and Ground Telescopes Capture First Multi-Temperature CME on a Young Sun Analogue

Simulations Link Hypervelocity White Dwarfs to Double-Detonation Hybrid White Dwarf Mergers

ALMA Maps 1.4‑Light‑Year, Sun‑Mass Bubble Around Red Supergiant DFK 52