NASA’s Juno spacecraft detects strange new auroras on Jupiter – tech2.org

NASA’s Juno spacecraft detects strange new auroras on Jupiter


Data from NASA’s Juno spacecraft revealed faint auroral features likely triggered by charged particles from the edge of Jupiter’s massive magnetosphere. (Image credit: NASA / SWRI / JPL-Caltech / SwRI / V. Hue / GR Gladstone / B. Bonfond)

NASA’s Juno mission has detected new auroral emissions on Jupiter that appear to ripple over the planet’s poles.

The Juno spacecraft’s ultraviolet spectrograph (UVS) captured this bright phenomenon, which is characterized by faint, ring-shaped emissions that expand rapidly over time at speeds of between 2 and 4.8 miles per second (3.3 and 7.7 kilometers per second). Researchers at the Southwest Research Institute (SwRI), where Juno’s UVS instrument was built, suggest that these auroral emissions are caused by charged particles coming from the edge of Jupiter’s massive magnetosphere, according to a statement from the institute.

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