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Stellar Astronomy

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Astronomers Find 20 Very‑Metal‑Poor Stars Near Milky Way Disk and Propose a Lost Dwarf Galaxy

The team says shared chemical fingerprints and mixed orbits point to an early merger that could add a missing piece to the galaxy’s formation story.

Astronomers Find Most Pristine Star Yet From the Large Magellanic Cloud

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

Late-Blooming Rocky World, JWST Chemistry Recast Planet Formation

Diskless White Dwarf Drives Millennia-Long Outflow, Forming Comet-Like Bow Shock

Hubble Data Tie Betelgeuse’s 6-Year Variations to Hidden Companion’s Gas Wake

Pleiades Recast as Core of a Vast 'Greater Pleiades' Stellar Family

Astronomers Report Most Metal-Poor Star Yet From the Large Magellanic Cloud

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

Astronomers Likely Detect Faint Companion Star Orbiting Betelgeuse

Scientists Confirm Companion Star Orbiting Within Betelgeuse’s Atmosphere

First Direct Images Reveal Betelgeuse’s Close-Orbiting Companion

Astronomers Capture First Close-Up Image of a Star Beyond the Milky Way

Vega's Smooth Disk Challenges Planet Formation Theories

Astronomers Release Most Detailed Infrared Map of the Milky Way

Astronomers Capture First High-Resolution Images of Spotted Polaris

Astronomers Use Pulsars to Detect Potential Dark Matter

Astronomers Uncover Hidden Neutron Stars Orbiting Sun-like Stars

James Webb Telescope Unveils Twin Stars in Long-Studied System

James Webb Telescope Uncovers Carbon-Rich Protoplanetary Disks Around Tiny Stars