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Observational Astronomy

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

Multiwavelength data show visible dimming with an infrared spike, signaling hot debris from an impact.

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

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

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

JUICE Releases Best-Yet Image of Interstellar Comet 3I/ATLAS as Data Flow Begins

ALMA Unveils Record 650-Light-Year Mosaic of the Milky Way’s Turbulent Core

Webb Finds Dust-Obscured Red Supergiant Behind 2025 Supernova, a First for the Telescope

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

Six-Planet Parade Peaks Feb. 28 After Sunset: When, Where and How to Watch

New Spectra Challenge ‘Yellow Hypergiant’ Claim for Colossal LMC Star WOH G64

JWST Spots Most Distant ‘Jellyfish’ Galaxy Candidate at Redshift 1.156

Astronomers Trace Andromeda Star's Quiet Collapse Into a Black Hole

CHEOPS Reveals 'Inside-Out' Four-Planet System Around Red Dwarf LHS 1903

Astronomers Find Rare ‘Inside-Out’ Planetary System With Rocky Outer World

Science Study Details Andromeda Star’s Disappearance, Pointing to Black Hole Birth

New Analysis Finds Comet 41P Likely Flipped Its Spin After Record 2017 Slowdown

Study Ties ASASSN-24fw’s 200-Day Fade to Ringed Brown Dwarf or Super-Jupiter

Hubble Unveils Clearest Image Yet of the Egg Nebula

JWST Spots Sulfur in HR 8799 c, Strengthening Case for Core Accretion

Dark Matter Core Model Challenges Black Hole at Milky Way’s Center