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NASA’s Chandra X-ray Observatory released three new planetary sonifications on February 25, 2026, featuring Jupiter, Saturn, and Uranus. They are not microphone recordings made in space: they are carefully designed audio translations of telescope data and images.
You can listen to the official experiences on NASA’s Chandra release page or explore the broader Chandra sonification program.
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How to listen to NASA’s planetary sonifications
- Open the official NASA/Chandra release.
- Scroll to the Jupiter, Saturn, or Uranus section.
- Start the corresponding audiovisual player.
- Watch the moving scan line while listening.
- Compare changes in the image with changes in pitch, volume, and instrument texture.
The page also provides visual descriptions, which can complement the audiovisual experiences and help explain what each sequence represents.
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These are sonifications, not sounds recorded in space
There is no microphone capturing ordinary sound from Jupiter or Saturn. In the near-vacuum of interplanetary space, sound cannot travel as it does through Earth’s atmosphere.
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Instead, NASA converts selected astronomical measurements and image features into audio. A moving activation line scans across an image. As it encounters features, those features trigger sounds according to defined rules. For example:
- Brightness can control volume.
- Position or height in the image can control pitch.
- Different data layers can be assigned different instruments or electronic textures.
- The scan order determines when each feature is heard.
The result is not arbitrary sound design, but it is not a literal acoustic recording either. It is an audible representation shaped by scientific data, image processing, and mapping choices.
What Jupiter’s sonification represents
Jupiter’s experience combines Chandra X-ray observations with an infrared image from NASA’s Hubble-related data. Woodwind sounds represent X-ray data, including emissions associated with Jupiter’s auroras, while additional instruments represent the planet’s cloud layers.
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That does not mean listeners are hearing the physical sound of Jupiter’s aurora. The audio represents X-ray features associated with the planet and its auroral emissions within NASA’s chosen visual and musical mapping.
What Saturn’s sonification represents
Saturn’s sequence combines Chandra X-ray data with an optical image from NASA’s Cassini mission. The scan moves from right to left.
The visible rings trigger a siren-like effect whose frequency follows the arc of the rings. Lower synthetic tones represent Saturn itself, while higher synthetic tones represent Chandra X-rays detected across the planet, rings, and poles.
Brightness affects volume. As the scan reaches Saturn’s shaded side, the lower tone fades. The prominent ring sound therefore reflects the scan crossing the visible ring structure; it is not a recording of particles physically vibrating through Saturn’s rings.
Uranus is part of the release too
Although Jupiter and Saturn supply the headline-friendly images, NASA’s February release also includes Uranus. Its sonification combines Chandra X-ray data with optical observations from the W. M. Keck Observatory.
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A cello part traces Uranus’s ring structure. In this experience, brightness maps to volume and height in the image maps to pitch. The audio gives listeners another way to follow the planet’s features while the scan moves across the visualization.
Why use X-ray data?
The Sun emits X-rays that travel through the Solar System and can be reflected by planets, moons, and other bodies. Chandra can detect those reflected X-rays, revealing physical processes that visible-light images alone do not show.
Chandra is central to the release, but it is not the only source of information. The three experiences combine data and imagery from multiple missions and observatories:
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| World | Data and imagery | Sonification details |
|---|---|---|
| Jupiter | Chandra X-rays and Hubble-related infrared data | Woodwinds represent X-ray features; other instruments represent cloud layers |
| Saturn | Chandra X-rays and Cassini optical imagery | Siren-like ring effect, lower planetary tones, and higher X-ray tones |
| Uranus | Chandra X-rays and Keck optical data | Cello traces the rings; brightness controls volume and height controls pitch |
How old is the data behind the new audio?
The sonifications are new, but much of the underlying telescope data is archival:
- Jupiter: Chandra observed it on December 18, 2000, for 9 hours and 57 minutes. The estimated distance at the start of the observations was about 383 million miles from Earth.
- Saturn: Chandra observations were made on April 14, 2003, and January 20 and 26, 2004, totaling 30 hours. The average distance was about 886 million miles, or 1.4 billion kilometers.
- Uranus: Chandra observed it on August 7, 2002, for 8 hours and 13 minutes. Its average distance was about 1.8 billion miles, or 2.9 billion kilometers.
So “new” refers to NASA’s February 25, 2026 audiovisual release—not necessarily to newly collected observations.
Why NASA creates sonifications
Sonification preserves relationships within data while presenting them through hearing. That can help students and general audiences notice patterns, follow a scan, and explore astronomical images in a different way.
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The Jupiter, Saturn, and Uranus tracks were produced through NASA’s Chandra and Smithsonian Astrophysical Observatory teams with contributors from SYSTEM Sounds. The Uranus experience also includes cello by Johnny Mok.
For the most accurate listening experience, use the official NASA/Chandra page, watch the scan line, and treat the audio as a translation of telescope data—not as the literal voice of a planet.
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