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  1. NASA Webb, Hubble Share Most Comprehensive View of Saturn to Date

    March 25, 2026Release ID: 2026-117 Missions: Webb, Hubble

    Infrared and visible observations show layers and storms in the ringed planet’s atmosphere

    Side-by-side comparison of Saturn observed at different wavelengths and times show how differently it appears in infrared, on the left, versus visible light, on the right. Left image is labeled Saturn, Webb Infrared Light, November 29, 2024. Right image is labeled Saturn, Hubble Visible Light, August 22, 2024. In infrared, Saturn has horizontal bands, with bands at the north and south poles appearing darker orange and lightening to tan as they approach the equator. The north and south poles glow a greenish-grey. The rings appear in an icy neon white. White dots, representing several of Saturn’s moons, are labeled Janus, Dione, and Enceladus. In visible, Saturn’s horizontal bands appear pale yellow, with some bands towards the north and south pole having a light blue hue. The rings appear bright white, glowing slightly less than Webb’s infrared image. White dots, representing several of Saturn’s moons, are labeled Janus, Mimas, and Epimetheus.

  2. NASA’s Webb Observes Exoplanet Whose Composition Defies Explanation

    December 16, 2025Release ID: 2025-134 Missions: Webb

    Bizarre, lemon-shaped world has an atmosphere unlike any ever seen before.

    Illustration labeled “artist’s concept” at right bottom corner. At left bottom corner, a partially illuminated, lemon-shaped exoplanet appears against a black background. This planet is most brightly illuminated at its elongated tip on its right side. On the left side, which is wider, the planet trails off into the darkness of the background. The planet is colored in varying, mottled shades of red, light pink, and fuchsia. Most of the pink occurs closest to the tip, while most of the fuchsia is at the top and bottom edges. At right top corner, a white beam emanates diagonally, oriented from 10 o’clock to 4 o’clock, from either side of a small, glowing, white star.

  3. NASA’s Webb Detects Thick Atmosphere Around Broiling Lava World 

    December 11, 2025Release ID: 2025-140 Missions: Webb

    Observations of the ultra-hot super-Earth exoplanet TOI-561 b show the strongest evidence yet for an atmosphere on a rocky planet outside our solar system.

    Illustration of a planet orbiting a star, with the words “Artist’s Concept” in the lower right corner.

  4. NASA's Webb Exposes Complex Atmosphere of Starless Super-Jupiter

    March 03, 2025Release ID: 2025-106 Missions: Webb

    Webb has captured evidence for patchy cloud layers, high-altitude hot spots, and variations in chemistry around a rapidly rotating, free-floating object 20 light-years from Earth. 

    Illustration of a gas giant planet or brown dwarf on a background of distant stars.

  5. NASA's Hubble Celebrates Decade of Tracking Outer Planets

    December 09, 2024Release ID: 2024-010 Missions: Hubble, STScI

    Hubble Space Telescope Keeps a Vigilant Eye on Weather on Other Worlds

    A montage of Hubble views of our solar system's four giant outer planets: Jupiter, Saturn, Uranus, and Neptune taken from 2014 to 2024 by the OPAL (Outer Planet Atmospheres Legacy) program. Upper-left toward center: The hazy white polar cap on the three teal-colored Uranus images appears more face-on as the planet approaches northern summer. Center-right to far-center right: Three images of the blue planet Neptune show the coming and going of clouds as the Sun's radiation level changes. Seven views of yellow-brown Saturn stretch across the mosaic center in a triangle, show the tilt of the ring plane relative to the view from Earth, from left to right from an oblique angle to nearly edge-on, with colorful changes to bands of clouds in the turbulent atmosphere. Bottom center: Three Jupiter images spanning nearly a decade form a triangle. Notable changes are seen in Jupiter's colorful white and brown striped cloud structure. The Great Red Spot, seen at southern latitudes, is prominent in each photo.

  6. NASA's Hubble Watches Jupiter's Great Red Spot Behave Like a Stress Ball

    October 09, 2024Release ID: 2024-011 Missions: Hubble

    Titanic Storm Wiggles Like a Plate of Gelatin

    Eight Hubble images showing Jupiter's Great Red Spot (GRS). The GRS appears as a bright red oval in the middle of cream-colored cloud bands. The images trace changes in the GRS’s size, shape, brightness, color, and twisting, over a period of 90 days between December 2023 and March 2024.

  7. NASA's Hubble, MAVEN Help Solve the Mystery of Mars' Escaping Water

    September 05, 2024Release ID: 2024-028 Missions: Hubble

    Results upend the classical picture that scientists previously held

    Split image of two panels stacked vertically. In the left corner of the top image is the label Mars Corona, Hubble Space Telescope. This label pertains to both panels. In the top panel, on a black background, an orange and white orb is surrounded by a small, diffuse, grainy, orange halo. The halo appears to have more material on its left side than its right. Under the orb is the label Aphelion: December 31, 2017. In the bottom panel, on a black background, a larger orange and white orb is also surrounded by a diffuse, grainy, orange halo. This halo is wider than the one in the top panel. The halo appears to have more material on its right side than its left. Under the orb is the label Perihelion: December 19, 2016. In both panels, white, polar ice caps and some surface features are visible.

  8. NASA's Webb Cracks Case of Inflated Exoplanet

    May 20, 2024Release ID: 2024-113 Missions: Webb

    A surprising deficiency of methane suggests that tidal heating has puffed up the atmosphere of the warm gas giant WASP-107 b.

    Illustration of an exoplanet with a hazy blue atmosphere and loose bands of clouds.

  9. NASA's Webb Hints at Possible Atmosphere Surrounding Rocky Exoplanet  

    May 08, 2024Release ID: 2024-102 Missions: Webb

    Gas bubbling up from a lava-covered surface on 55 Cancri e may feed an atmosphere rich in carbon dioxide or carbon monoxide. 

    Illustration of a rocky exoplanet and its star.

  10. NASA's Webb Maps Weather on Planet 280 Light-Years Away

    April 30, 2024Release ID: 2024-117 Missions: Webb

    WASP-43 b is cloudy on the nightside and clear on the dayside, with equatorial winds howling around the planet at 5,000 miles per hour. 

    Illustration showing a hazy blue planet against the black background of space.

  11. Hubble Tracks Jupiter's Stormy Weather

    March 14, 2024Release ID: 2024-009 Missions: Hubble

    Cyclones, Wind Shear, Violent Storms Churn in Jupiter's Atmosphere

    A side-by-side image showing both faces of Jupiter on the black background of space. At the top, left corner of the left-hand image is the label Jupiter. Centered at the bottom is the label "January 5, 2024." Jupiter is banded in stripes of brownish orange, light gray, soft yellow, and shades of cream, punctuated with many large storms and small white clouds. The largest storm, the Great Red Spot, is the most prominent feature in the left bottom third of this view. To its lower right is a smaller reddish anticyclone, Red Spot Jr. On the right-hand image, centered at the bottom is the label "January 6, 2024." This opposite side of Jupiter is also banded in stripes of brownish orange, light gray, soft yellow, and shades of cream, with many large storms and small white clouds punctuating the planet. At upper right of center, a pair of storms appear next to each other: a deep-red, triangle-shaped cyclone and a reddish anticyclone. Toward the far-left edge of this view is Jupiter's tiny orange-colored moon Io.

  12. NASA's Webb Finds Signs of Possible Aurorae on Isolated Brown Dwarf

    January 09, 2024Release ID: 2024-103 Missions: Webb

    Infrared emission from methane suggests atmospheric heating by auroral processes.

    An artist concept portrays a round, dark blue, gaseous object on a black, star-filled background.

  13. NASA's Hubble Observes Exoplanet Atmosphere Changing Over 3 Years

    January 04, 2024Release ID: 2024-003 Missions: Hubble

    Stormy weather on display on a "hot Jupiter"

    An illustration depicting the exoplanet WASP 121-b. The planet dominates the foreground on the left side of the image, and appears banded with colors of red, yellow, and orange. Behind the planet is a large star that appears similar in size to the exoplanet. The background is made up of fuzzy light gray nearer to the star, and darker grays at the edges. The words "Artist Concept" are in white in the bottom right corner of the image.

  14. NASA's Hubble Watches 'Spoke Season' on Saturn

    December 21, 2023Release ID: 2023-023 Missions: Hubble

    Levitated Dust Takes a Carousel Ride Around the Giant Ringworld

    Saturn with bright white rings and multi-colored main sphere. Spoke features on the left and right sides of the rings appear like faint gray smudges against the rings' bright backdrop, about midway from the planet to the rings' outer edge. Above the rings plane, the planet's bands are shades of red, orange and yellow, with bright white nearer the equator. The background of space is black.

  15. NASA's Webb Discovers New Feature in Jupiter's Atmosphere

    October 19, 2023Release ID: 2023-147 Missions: Webb

    Narrow jet stream near equator has winds traveling 320 miles per hour.

    Jupiter dominates the black background of space. The image is a composite, and shows Jupiter in enhanced color, featuring the planet's famous Great Red Spot, which appears white with light pink around the edges. The planet is striated with swirling horizontal stripes of green, periwinkle, light pink, and cream. Horizontally across the equator is a wide cream-colored band, whose height extends about 1/7 of the planet. This is the planet’s equatorial zone. The stripes across the planet interact and mix at their edges. Along both of the northern and southern poles, the planet glows in green. Bright red auroras glow just above the planet’s surface at both poles.

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