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Planetary Formation

Protoplanetary Disks Moon Formation Exoplanets Debris Disks Gas Giants James Webb Space Telescope Planetesimals Core Accretion Models Exotic Systems Direct Imaging Interstellar Comets Comet Formation Planet Hosts Exoplanetary Systems HOPS-315 Satellite Dynamics Debris Clouds Interstellar Material Ring Formation Stellar Remnants Planetary Collisions Disintegrating Planets Transiting Planets Planetary Disintegration Debris Discs Star Systems Moon Formation Theories Protoplanetary Discs Chemical Environment Disc Instability Irregular Moons Data Collection Planetary Evaporation Planetary Systems Atmospheric Composition Ice Composition Temperate Planets Lunar Dynamics Moon-Moon Mergers Primordial Planetesimal Disks Gas and Dust Disks Mini-Earth Planets

TESS Confirms Two Jupiter‑Sized Super‑Puff Planets

A peer‑reviewed study reports record‑low densities measured from transit‑timing variations using unique Antarctic transit observations, prompting proposals for JWST atmospheric spectroscopy.

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

Study Links Titan’s Moon‑Merger Origin to Saturn’s Young Rings

ALMA’s ARKS Survey Delivers Sharpest-Ever Map of 24 ExoKuiper Belts

Astronomers Make First Direct Mass Measurement of a Rogue Planet

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

Hubble Reveals Largest Known Planet-Forming Disk, 'Dracula’s Chivito'

Hubble Captures Record-Breaking Chaotic Planet-Forming Disk 1,000 Light-Years Away

Hubble Catches Two Debris-Cloud Collisions at Fomalhaut, Recasting ‘Fomalhaut b’

JWST Finds Strong Evidence of a Thick Atmosphere on Molten Super-Earth TOI-561 b

Mineral Condensation Captured in Planet-Forming Disk of Protostar HOPS-315

Webb Reveals Silicate Clouds and Moon-Forming Disk in YSES-1 System