Science ❯ Astronomy

Planetary Systems

Planet Formation Solar System Gas Giants Protoplanetary Disks Exoplanets Red Dwarf Stars Orbital Mechanics Planetary Formation Multi-Planetary Systems Planetary Evolution

Interstellar Comet 3I/ATLAS Shows Extreme Heavy-Water Signal, Pointing to an Ultra‑Cold Origin

The chemical fingerprint points to birth in an ultra-cold, low-radiation region far from a Sun-like nursery.

Second Infant Planet Confirmed Forming Around Nearby Star WISPIT 2

Cornell Team Publishes Vetted List of 45 Rocky Exoplanets Most Likely to Host Life

Webb Data Point to Sulfur‑Rich Magma‑Ocean Planet L 98‑59 d

Cornell Catalog Identifies 45 Rocky Exoplanets in Habitable Zones

JWST Details Io and Europa Auroral Footprints, Finds Rapid, Dense Cold Spot on Jupiter

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

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

Rocky Outer Planet in LHS 1903 System Upends Planet-Formation Models

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

Kepler Archive Reveals Earth-Size Exoplanet Candidate Near Habitable Zone

Earth-Size, Yearlong-Orbit Exoplanet Candidate Found 146 Light-Years Away

Kepler Archive Yields Earth-Size Planet Candidate with Yearlike Orbit

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

Nature Study Weighs Four Young V1298 Tau Planets, Revealing Ultra‑Low Densities

Hubble Spots Record-Breaking, Chaotic Planet-Forming Disk ‘Dracula’s Chivito’

Ancient White Dwarf Caught Accreting Debris From a Shattered Rocky World

Scientists Detect Habitable-Zone ‘Super‑Earth’ GJ 251 c Just 18 Light‑Years Away

3-Billion-Year-Old White Dwarf Is Actively Devouring Rocky Debris, Study Finds

First Direct Image of a Protoplanet in a Disk Gap Confirms Formation Theory