Enhanced color image of Jupiter's moon Io showing the Tvashtar Catena volcanic region. A larger image shows the area in January, while an inset shows a new image from August revealing a newly active volcano with a light-colored ring, indicating a significant change in volcanic activity. The original January plume is no longer visible.

Astronomy Picture from 16/10/2001

A Newly Active Volcano on Jupiter's Io

Source: https://apod.nasa.gov/apod/ap011016.html


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