Science ❯ Planetary Science

Planet Formation

Solar System Gas Giants Rocky Planets Accretion Circumstellar Disks Atmospheric Analysis Outer Solar System Water Worlds Gas Escape Astrophysics

Study Finds Planetary Oxygen at Birth Controls Life-Critical Phosphorus and Nitrogen

The model ties core-formation oxygen to surface access to phosphorus and nitrogen, shifting habitability tests toward formation chemistry.

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

Webb Finds Helium–Carbon Atmosphere on First Hot Jupiter Known Around a Pulsar

Webb Data Point to Thick Atmosphere on Ultra‑Hot Super‑Earth TOI‑561 b

Perihelion Data Show Non-Gravitational Push on 3I/ATLAS, Prompting New Scrutiny

Lab Experiments Reveal Planets Can Make Water From Hydrogen–Magma Reactions

Nearby Super‑Earth GJ 251 c Detected in Habitable Zone After Two‑Decade Radial‑Velocity Campaign

Interstellar Comet 3I/ATLAS Withstands Solar Storm as Mars Flyby Nears

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

Simulations Point to Carbon as Trigger for Earth’s Inner-Core Formation

UC Santa Cruz Model Recasts Sub‑Neptune ‘Steam Worlds’ With Colder, Smaller Interiors

Rare Jet-Driven Bubble Warps Protoplanetary Disk in WSB 52

Webb Telescope Confirms First Extraterrestrial Water Ice in Young Star System

James Webb Telescope Unveils Clear Atmosphere of Hot Sub-Neptune TOI-421 b

Oxford Study Challenges Asteroid Theory of Earth's Water Origin

Water Found to Have Existed 100–200 Million Years After the Big Bang

Astronomers Detect Record-Breaking Supersonic Winds on Exoplanet WASP-127b

Vega's Smooth Disk Challenges Planet Formation Theories

New Study Traces Dinosaur-Killing Asteroid's Origin to Outer Solar System