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Gas Giants

Jupiter Hot Jupiters Uranus Uranus and Neptune Saturn Jupiter-like Planets Ultrahot Jupiters Ultra-hot Jupiters WASP-127b Atmospheric Composition Cloud Formation Cold Gas Giants Core Accretion Theory Jupiter Analogues Enceladus Impact Events Ice Giants Temperate Exoplanets Polar Vortices Super-Jupiter Detection Methods Jupiter and Saturn Cold Giants TOI-6894b Planetary Detection Techniques Satellite Systems Atmospheric Dynamics Methane Depletion HR 8799 Voyager Discoveries Jupiter's Atmosphere Características de TOI-6894b Cold Exoplanets Characterization Temperate Planets Europa Core Accretion Protoplanet Formation HR 8799 System Jet Streams Comparative Planetology Saturn-like Planets WD 1856 b Chemical Modeling Weather Phenomena Warm Jupiters Planetary Formation Processes Planetary Systems WISPIT 2b and WISPIT 2c TOI-199b YSES-1b and YSES-1c Jupiter-like Exoplanets Planet Composition WISPIT 2b Ultra-Hot Jupiters Atmospheric Chemistry Epsilon Indi Ab WASP-121b Atmospheric Characteristics Planetary Formation

Webb Resolves Dawn and Dusk on Hot Jupiters

Separating morning and evening terminators reveals different chemistry, clouds and winds that change inferred atmospheric compositions.

JWST Resolves Morning Clouds and Clear Evenings on Hot Jupiter WASP-94A b

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

NASA Unveils Paired Webb and Hubble Views of Saturn

Second Infant Planet Confirmed Forming Around Nearby Star WISPIT 2

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

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

Astronomers Report Tentative Exomoon Around HD 206893 B Using Precision Astrometry

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

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

Study Finds Uranus Emits 12.5% More Heat Than It Absorbs

Combined ALMA and Gaia Data Reveal Hidden Gas Giant in MP Mus’s Protoplanetary Disk

Astronomers Solicit Observations to Confirm Possible First Impact on Saturn

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