Using observations from the James Webb Space Telescope (JWST) and the Hubble Space Telescope, astronomers have created the most comprehensive look at Saturn to date, blending infrared, visible and ultraviolet light into a single, richly layered image, according to a statement from NASA.
"Together, scientists can effectively 'slice' through Saturn's atmosphere at multiple altitudes, like peeling back the layers of an onion," NASA officials said in the statement. "Each telescope tells a different part of Saturn's story, and the observations together help researchers understand how Saturn's atmosphere works as a connected three-dimensional system."
Each space telescope brings a distinct perspective. Hubble captures crisp, long-term visible-light views of Saturn's cloud bands and atmospheric changes, while the JWST peers deeper into the planet's atmosphere in infrared, revealing heat patterns and structures hidden beneath the upper cloud layers.
The Hubble data, captured in August 2024 as part of the long-running Outer Planet Atmospheres Legacy (OPAL) program, was followed about 14 weeks later by Webb observations taken through Director's Discretionary Time, showing Saturn shifting from northern summer toward its 2025 equinox. Saturn's long seasonal cycles — each lasting about seven Earth years — also provide important context for interpreting changes in the planet's atmosphere and rings over time.
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