Science ❯ Astronomy ❯ Exoplanets

Planetary Formation

Gas Giants James Webb Space Telescope Chemical Composition Protoplanetary Disks Atmospheric Composition TOI-6894 Water Formation PSR J2322-2650 b PSR J2322-2650b Detection Methods Water Distribution Formation Mechanisms TOI-6894b Interaction with Other Planets Orbital Motion PSR J2322–2650b Water-rich Atmosphere Planetary Composition Transiting Planets Sulfur Cycle Metallicity Tail Formation HR 8799 CT Cha b Retrograde Planets TOI-5205 b Water in Exoplanets Planetary Demise Mass Loss JWST MIRI Rocky Planets Migration Theory Gravitational Microlensing Hydrogen Sulfide Detection IRAS 04125+2902 Orbital Period V1298 Tau System HR 8799 System Moon Formation IRAS 04125+2902b Sub-Neptunes TOI 1227b Alpha Centauri A Orbital Dynamics Observational Techniques Planetary Systems Super-Puff Planets Fomalhaut System Water in Planetary Cores TOI-791 System Planetary Destruction WISPIT 2b Ice Giants Dust and Gas Interactions Super-Earths

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.

JWST Finds Metal-Poor Atmosphere on Giant Planet Around a Small Red Dwarf

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

Hubble Spots Second Debris Cloud at Fomalhaut, Confirming Repeated Planetesimal Collisions

Webb Finds Carbon-Rich Atmosphere on Lemon-Shaped Planet Orbiting a Pulsar

Webb Spots Carbon-Rich, Lemon-Shaped Planet Orbiting a Pulsar

Lab Experiments Show Sub‑Neptunes Can Make Their Own Water

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

James Webb Space Telescope Captures First Exoplanet by Direct Imaging

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

Hubble Observations Reveal Unexpected Darkening of Uranus’s Moons

Saturn-Sized Exoplanet Orbits Record-Low Mass Star, Challenging Formation Theories