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Random freezes, missing sound and display glitches usually trace back to one bad driver. Find and replace yours safely.Free scan · under a minuteNASA’s new Saturn comparison pairs a Webb infrared view observed on November 29, 2024, with a Hubble visible-light view observed on August 22, 2024. Released on March 25, 2026, the images show different aspects of the planet’s atmosphere—not simultaneous snapshots—and help researchers examine it at multiple altitudes.
What do Webb’s new images of Saturn show?
Webb’s Near-Infrared Camera (NIRCam) image reveals atmospheric features including a ribbon-like wave at northern mid-latitudes, a remnant of Saturn’s 2010–2012 Great Springtime Storm, and several storms in the southern hemisphere. NASA also notes grey-green coloring at the poles. Its possible causes, such as high-altitude aerosols or auroral activity, remain explanations under consideration rather than confirmed findings.
The comparison image from Hubble shows subtle variations in Saturn’s visible colors. Webb’s infrared view brings out features at different atmospheric depths. The NASA Webb Mission Team describes the value of combining them: “Together, scientists can effectively ‘slice’ through Saturn’s atmosphere at multiple altitudes, like peeling back the layers of an onion.”
How do the Webb and Hubble views differ?
| View | Observation date | Instrument and filters | What it helps reveal |
|---|---|---|---|
| Webb infrared | November 29, 2024 | NIRCam; F164N, F212N, F430M, and F470N | Atmospheric structures at different depths, including storms and the northern ribbon wave. |
| Hubble visible light | August 22, 2024 | WFC3/UVIS; F395N, F502N, and F631N | Subtle visible color variations across the planet. |
The images were captured on different dates, so changes between them cannot be read as a direct before-and-after sequence. NASA presents the views as complementary: each telescope observes Saturn in a different part of the spectrum and contributes a different perspective on its atmosphere. Webb’s observations used Director’s Discretionary Time; Hubble’s were part of the Outer Planet Atmospheres Legacy (OPAL) monitoring program.
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Why do Saturn’s rings look so bright in Webb’s image?
The rings’ appearance depends on the wavelengths and filters used, as well as how the image is processed. The 2024 Webb image combines observations made with four filters, so an explanation tied to a single wavelength should not be applied to it as a whole.
A separate Webb image from 2023 offers a specific example: it used the F323N filter at 3.23 microns. At that wavelength, methane absorbs almost all sunlight reflected by Saturn, making the planet appear dark while the icy rings remain relatively bright. Its orange hue was assigned to monochrome data during processing; it is not a literal naked-eye color. That single-filter explanation describes the 2023 image, not the 2024 multiband view.
Which moons appear in the images?
The annotated 2024 Webb view labels Janus, Dione, and Enceladus; a wider view includes six larger moons, including Titan. Hubble’s comparison labels Janus, Mimas, and Epimetheus. The different labels reflect the views and annotations shown, not a claim that either image is a complete census of Saturn’s moons.
How should you read the colors?
These are processed telescope images, not photographs that reproduce exactly what a person would see unaided. Colors are assigned to data from different filters to help represent or distinguish the observations. NASA’s image record includes a compass, scale bar, and filter color key for interpreting the comparison. For details and the credited imagery, see NASA’s March 25, 2026 release and the image record for Webb and Hubble’s Saturn views.
How this differs from Webb’s earlier Saturn image
Webb observed Saturn in a separate NIRCam image on June 25, 2023, released June 30, 2023. That image used only F323N at 3.23 microns, which is why the methane absorption explanation applies to it. It should not be confused with the 2024 multiband observations in NASA’s 2026 comparison. See NASA’s 2023 Saturn image record.
The 2026 comparison image is credited to NASA, ESA, CSA, STScI, Amy Simon (NASA Goddard Space Flight Center), and Michael Wong (UC Berkeley), with image processing by Joseph DePasquale (STScI).
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