Tag Archive for 'Satellite footprint'

Webb captured the auroral footprints of Io and Europa, providing spectral measurements for the first time, and revealing extreme changes in the physical properties within Io’s auroral footprint that are likely linked to the electrons crashing into the top of Jupiter’s atmosphere. Image credit: NASA / ESA / CSA / Webb / NIRCam / Jupiter ERS Team / Judy Schmidt / Katie L. Knowles, Northumbria University.

Webb Captures Io’s and Europa’s Auroral Footprints in Jupiter’s Atmosphere

Mar 5, 2026 by News Staff

The NASA/ESA/CSA James Webb Space Telescope conducted a clockwise scan around the entire limb of Jupiter, chasing aurora as it rotated into view. This...

Juno capturing the marks on Jupiter of all four Galilean moons; the aurorae related to each are labeled Io, Eur (for Europa), Gan (for Ganymede), and Cal (for Callisto). Image credit: NASA / JPL-Caltech / SwRI / UVS Team / MSSS / Gill / Jónsson / Perry / Hue / Rabia.

Juno Observes Ultraviolet Satellite Footprint of Jupiter’s Moon Callisto

Sep 4, 2025 by News Staff

Jupiter hosts the brightest and most spectacular aurorae in the Solar System. Near its poles, these shimmering lights offer a glimpse into how the planet...