With a resolution that ranges from 840 to 1,115 feet (256 to 340 meters) per pixel, the image was captured as Juno raced past at about 15 miles per second (24 kilometers per second) over a part of the surface that was in nighttime, dimly lit by “Jupiter shine” – sunlight reflecting off Jupiter’s cloud tops.ĭesigned for low-light conditions, the SRU has also proven itself a valuable science tool, discovering shallow lightning in Jupiter’s atmosphere, imaging Jupiter’s enigmatic ring system, and now providing a glimpse of some of Europa’s most fascinating geologic formations. Juno’s Stellar Reference Unit (SRU) – a star camera used to orient the spacecraft – obtained the black-and-white image during the spacecraft’s flyby of Europa on September 29th, 2022, at a distance of about 256 miles (412 kilometers). The white dots in the image are signatures of penetrating high-energy particles from the severe radiation environment around the moon. Near the upper right of the image, as well as just to the right and below center, are dark stains possibly linked to something from below erupting onto the surface.īelow center and to the right is a surface feature that recalls a musical quarter note, measuring 42 miles (67 kilometers) north-south by 23 miles (37 kilometers) east-west. The image covers about 93 miles (150 kilometers) by 125 miles (200 kilometers) of Europa’s surface, revealing a region crisscrossed with a network of fine grooves and double ridges (pairs of long parallel lines indicating elevated features in the ice). Pasadena, CA – The highest-resolution photo NASA’s Juno mission has ever taken of a specific portion of Jupiter’s moon Europa reveals a detailed view of a puzzling region of the moon’s heavily fractured icy crust.
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