Science ❯ Astronomy ❯ Planetary Science

Gas Giants

Jupiter Uranus Uranus and Neptune Hot Jupiters Jupiter-like Planets Saturn Ultrahot Jupiters WASP-127b Cloud Formation Atmospheric Composition

JWST Spots Water-Ice Clouds on Nearby Jupiter-Like World

The finding pressures exoplanet models to account for clouds.

NASA Unveils Paired Webb and Hubble Views of Saturn

Second Infant Planet Confirmed Forming Around Nearby Star WISPIT 2

Juno Radio Occultations Sharpen Jupiter’s Dimensions, Reveal Greater Oblateness

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

Juno Data Refine Jupiter’s Size, Finding the Giant Slightly Smaller and More Flattened

New Jupiter Model Finds More Oxygen and Far Slower Atmospheric Mixing

Jupiter Nears Opposition, Set to Dominate the Night Sky on January 10

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

New Models Suggest Uranus and Neptune May Be Far Rockier Than Long Assumed

JWST Finds Twin Helium Tails Streaming From Hot Jupiter WASP-121b

Astronomers Report Tentative Exomoon Around HD 206893 B Using Precision Astrometry

Interstellar Object 3I/ATLAS Shows Persistent Dust Anti‑Tail as Jupiter Flyby Nears

Early Jupiter Shaped the Inner Solar System, Study Finds

Webb Detects First Silane in Ancient Brown Dwarf, Clarifying Jupiter–Saturn Silicon Mystery

Moon Brushes Past Saturn as Pre-Dawn Five-Planet Parade Continues

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

Chandra Observations Reveal Rapid Atmospheric Loss on Exoplanet TOI 1227b