Science ❯ Astronomy

Stellar Phenomena

Supernovae Novae Nova Stellar Evolution Supernova White Dwarfs Binary Stars Star Formation Black Holes Variable Stars

JWST Reveals Lemon-Shaped Pulsar Companion With Carbon–Helium Atmosphere

Spectra reveal molecular carbon in a helium-dominated atmosphere with extreme elemental ratios that existing formation theories fail to explain.

Study Ties Ancient Close Stellar Flyby to a ‘Cosmic Scar’ in the Sun’s Neighborhood

Early Interferometric Images Recast Novae as Multi-Stage, Directional Eruptions

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

VLT Uncovers Gas Ring as V Sagittae’s White Dwarf Goes Thermonuclear

Nature Study Reveals Rare Supernova That Exposed a Star’s Inner Layers

Astronomers Identify Ultra-Stripped Supernova, Propose New ‘Type Ien’

130-Year Record Shows Planetary Nebula IC 418 Heating Faster Than Recent Models Predict

Rare Supernova Reveals Silicon-Rich Inner Shells, Confirming Layered Stellar Interiors

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

Astronomers Identify New Supernova Type That Exposes a Star’s Deepest Layers

Black Hole-Star Encounter Likely Sparked Rare Double-Peaked Supernova

Black Hole–Star Encounter Likely Spawned SN 2023zkd, Study Finds

Webb Telescope Rules Out Atmosphere on Earth-Sized Exoplanet TRAPPIST-1 d

ALMA Reveals 1.4-Light-Year Bubble Around Supergiant DFK 52

Astronomers Likely Detect Faint Companion Star Orbiting Betelgeuse

First Direct Images Reveal Betelgeuse’s Close-Orbiting Companion

Chandra Observations Reveal Rapid Atmospheric Loss on Exoplanet TOI 1227b

Double Detonation Verified in Type Ia Supernova Remnant

Gas Giant HIP 67522 b Triggers Intense Stellar Flares, Accelerating Its Atmospheric Loss