Io being illuminated by Europa's moonlight with the volcanos and plasma brightly visible. NASA's Juno spacecraft has captured an intriguing image of a volcanic plume straddling the line between day and night on Jupiter's eruptive moon Io. (Photo/Agencies)
Meet Io, Jupiter’s innermost large moon. The red dots ? nicknamed the “fires of Io” ? are active volcanoes. NASA's Juno spacecraft has captured an intriguing image of a volcanic plume straddling the line between day and night on Jupiter's eruptive moon Io. (Photo/Agencies)
Juno's visible light camera, JunoCam, spotted a volcanic plume right along Io's terminator, the line between the daylight side and the night side. NASA's Juno spacecraft has captured an intriguing image of a volcanic plume straddling the line between day and night on Jupiter's eruptive moon Io. (Photo/Agencies)