Science ❯ Astronomy ❯ Planetary Science

Exoplanets

Planet Formation Habitability Planet Nine Sub-Neptunes Orbital Dynamics White Dwarfs KMT-2020-BLG-0414 K2-18b Observations Search for Life Water Distribution

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

Years of transit‑timing data indicate the planets are inflated by stellar heating, with atmospheres already escaping.

Astronomers Make First Direct Mass Measurement of a Rogue Planet

JWST Reveals Pulsar-Orbiting ‘Lemon’ Planet With Helium–Carbon Atmosphere

Experiments Confirm Hydrogen–Rock Reactions Can Create Large Water Stores Inside Sub-Neptunes

Free-Floating Planet Registers Record Growth Burst Spotted by ESO’s VLT

Webb Makes First Direct Chemical Reading of a Moon-Forming Disk Around CT Cha b

Hubble Spots White Dwarf Devouring Nitrogen‑Rich, Pluto‑Like Icy Debris

Hubble Spots White Dwarf Devouring Icy, Nitrogen-Rich Exo‑Pluto Fragment

NASA Confirms 6,000 Exoplanets, Marking a New Phase in the Search for Other Worlds

UCSC Model Links JWST Steam Detections to the Interiors of Sub‑Neptune Worlds

VLT Directly Images Infant Gas Giant ‘WISPIT 2b’ Inside Planet‑Building Disk

New Simulations Challenge Giant-Impact Origin of Jupiter’s Fuzzy Core

New Simulations Undercut Giant-Impact Origin of Jupiter's Dilute Core

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

Uranus Emits 12–15% More Internal Heat Than Previously Thought

New Dwarf Planet 2017 OF201 Undermines Case for Planet Nine

Biosignature Claims for Exoplanet K2-18b Face Mounting Challenges

Webb Telescope Confirms First Extraterrestrial Water Ice in Young Star System

New Candidate for Planet Nine Challenges Original Hypothesis

Astronomers Unveil Disintegrating Exoplanet with Record-Breaking Dust Tail