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  1. As NASA Missions Study Interstellar Comet, Hubble Makes Size Estimate

    August 07, 2025Release ID: 2025-022 Missions: Hubble

    Icy Comet Nucleus is No Bigger Than a Few Miles Across  

    At the center of the image is a comet that appears as a teardrop-shaped bluish cocoon of dust coming off the comet’s solid, icy nucleus and seen against a black background. The comet appears to be heading to the bottom left corner of the image. About a dozen short, light blue diagonal streaks are seen scattered across the image, which are from background stars that appeared to move during the exposure because the telescope was tracking the moving comet.

  2. Moons of Uranus Surprise Scientists in NASA Hubble Study

    June 10, 2025Release ID: 2025-018 Missions: STScI

    New surface data from largest Uranian moons are contrary to expectations.  

    Four small, white dots appear widely spaced in a steep, roughly jagged, diagonal line from top right to bottom left. These white dots appear against a solid black background. A fifth small, white dot is superimposed on a much larger blue sphere, which is also on the black background. This medium-blue sphere has pink, white, and lighter blue diagonal striations. Also superimposed on this striated sphere is a tiny black dot, which is just to the right and slightly beneath the white dot. Encircling the blue sphere at the same steep diagonal angle as the white dots and striations are thin, ghostly, white, Saturn-like rings. The four white dots are labeled, from top right to bottom left, “Titania,” “Oberon,” “Umbriel,” and “Miranda.” The white dot and its accompanying black dot, which are both superimposed on the blue sphere, are labeled “Ariel and shadow.” The faint, Saturn-like rings encircling the blue sphere are labeled simply “rings.”

  3. Webb's Titan Forecast: Partly Cloudy With Occasional Methane Showers

    May 14, 2025Release ID: 2025-122 Missions: Webb

    Astronomers see evidence of clouds bubbling up over Titan’s northern hemisphere.

    A six-panel graphic with two rows and three columns, showing infrared images of Saturn’s moon Titan.

  4. NASA's Webb Reveals New Details, Mysteries in Jupiter's Aurora

    May 12, 2025Release ID: 2025-108 Missions: Webb

    Webb sees the aurora flickering, fluctuating, and undulating at Jupiter’s north pole.

    Three panels show the top of a planet in shades of orange. A bright ribbon wraps around the planet's pole. Inside the circle formed by the ribbon is a more mottled area. Below the ribbon, the planet is much darker.

  5. Eye on Infinity: NASA Celebrates Hubble's 35th Year in Orbit

    April 23, 2025Release ID: 2025-013 Missions: Hubble

    Legendary space telescope redefined the universe.

    Composite shows four Hubble images in quarters. At top left is a crisp view of Mars in shades of orange, blues, and browns. At top right is planetary nebula NGC 2899, which is shaped like a single macaroni noodle, with its central torus appearing semi-transparent and blue and green, and its top and bottom edges in orange. At bottom left is a tiny portion of the Rosette Nebula. Very dark gray material shaped like a triangle takes up the center. At bottom right is barred spiral galaxy NGC 5335 with a milky yellow center that forms a bar surrounded by multiple blue star-filled spiral arms that wrap up counterclockwise.

  6. 20-Year Hubble Study of Uranus Yields New Atmospheric Insights

    March 31, 2025Release ID: 2025-011 Missions: Hubble

    Uranus findings can aid the study of exoplanets.

    Graphic titled “Hubble Space Telescope – Observations of Uranus,” with 16 images of Uranus, arranged in a 4 by 4 grid showing changes in appearance of Uranus as observed by Hubble between 2002 and 2022.

  7. NASA's Webb Captures Neptune's Auroras For First Time

    March 26, 2025Release ID: 2025-104 Missions: Webb

    Long-sought auroral glow finally emerges under Webb’s powerful gaze.

    A two-panel horizontal image. On the left is Neptune, as seen from the Hubble Space Telescope. It is a blue circle, tilted about 25 degrees to the left. There are white smudges at 7 o’clock and just above 5 o’clock. At the right is an opposing view of the planet, using data from Hubble and Webb. It is a multi-hued blue orb. There are white smudges in the same spots as the image on the left, but also at the center of the planet and at the top. There are cyan smudges vertically along the right side, with the top of the smudging more translucent than the bottom.

  8. 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.

  9. NASA's Hubble, New Horizons Team Up for a Simultaneous Look at Uranus

    October 09, 2024Release ID: 2024-033 Missions: Hubble

    Learnings provide insights into capabilities needed for direct-imaging of exoplanets

    A four-panel image. The top two panels are diagrams of Uranus – spheres with gridlines going longitudinally and latitudinally. On the top left, the view from Hubble, the southern pole of the planet faces 3 o'clock. On the top right, the view from New Horizons, the southern pole faces 10 o'clock. The bottom left panel is Hubble’s actual view of Uranus – the planet is a light blue sphere, with a white circle covering the right half of the planet (the southern pole). The bottom right panel is the actual view of Uranus from New Horizons. The planet appears as a tiny whiteish dot.

  10. 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.

  11. NASA's Webb Reveals Unusual Jets of Volatile Gas from Icy Centaur 29P

    October 02, 2024Release ID: 2024-130 Missions: Webb

    Scientists revealed unexpected outgassing from this object galloping across the outer solar system.

    Artist’s concept of Centaur 29P/Schwassmann-Wachmann 1 as seen from the side against a dark, mostly starless swath of space. The rocky, bilobed nucleus is toward the right and resembles the simplified shape of a peanut. The left side of the centaur is partially illuminated by the Sun, which is off-screen, revealing the nucleus’ light brown surface. Four jets of gas, depicted as translucent cones of white, emanate from various points on the Centaur’s surface and extend beyond the frame. A label in the bottom left corner reads “Artist’s Concept.”

  12. 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.

  13. Hubble Goes Hunting for Small Main Belt Asteroids

    April 18, 2024Release ID: 2024-014 Missions: Hubble

    Deep-Sky Exposure Yields Telltale Evidence for Asteroid Moving Across the Celestial Background

    This is a Hubble Space Telescope image of the barred spiral galaxy UGC 12158. The majestic galaxy has a pinwheel shape made up of bright blue stars wound around a yellow-white hub of central stars. The hub has a slash of stars across it, called a bar. The galaxy is tilted face-on to our view from Earth. A slightly s-shaped white line across the top is a Hubble image is of an asteroid streaking across Hubble's view. It looks dashed because the image is a combination of several exposures of the asteroid flying by like a race car.

  14. 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.

  15. 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.

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