Stellar Reference Unit
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NASA
NASA’S Juno Misson Captures Jupiter Moon Thebe
Description NASA’s Juno spacecraft captured this view of Thebe, the second largest of Jupiter’s inner moons, during a close pass on May 1, 2026. The spacecraft’s Stellar Reference Unit (SRU) captured this image from a distance of approximately 3,100 miles (5,000 kilometers) at a resolution of about 1.9 miles (3 kilometers) per pixel. Thebe resides at the outer edge of…
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NASA
Danish Instrument Helps NASA’s Juno Spacecraft See Radiation
Using cameras designed for navigation, scientists count ‘fireflies’ to determine the amount of radiation the spacecraft receives during each orbit of Jupiter. Scientists with NASA’s Juno mission have developed the first complete 3D radiation map of the Jupiter system. Along with characterizing the intensity of the high-energy particles near the orbit of the icy moon Europa, the map shows how…
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NASA
NASA’s Juno Provides High-Definition Views of Europa’s Icy Shell
Imagery from the solar-powered spacecraft shows some intriguing features on the ice-encased Jovian moon. Images from the JunoCam visible-light camera aboard NASA’s Juno spacecraft supports the theory that the icy crust at the north and south poles of Jupiter’s moon Europa is not where it used to be. Another high-resolution picture of the icy moon, by the spacecraft’s Stellar Reference…
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