Sharmila Kuthunur is a Seattle-based science journalist covering astronomy, astrophysics and space exploration. Follow her on X @skuthunur.
The image combines three spectral bands — infrared, red and yellow — to highlight the reddish ring around the volcano Pele and the white ring around Pillan Patera, to the right of Pele.
To capture these views, the team used a camera, dubbed SHARK-VIS, that was recently installed on the Large Binocular Telescope located on Arizona's Mt. Graham; the new images outline features on's surface as small as 50 miles wide — a resolution that was, until now, possible only with spacecraft studying.
"It's kind of a competition between the Pillan eruption and the Pele eruption, how much and how fast each deposits," study co-author Imke de Pater of the University of California, Berkeley, said in anotherIo's volcanic eruptions, including those by Pele and Pillan Patera, are driven by frictional heat created deep within the moon as a result of a gravitational tug-of-war between Jupiter and its two other nearby moons Europa and Ganymede.
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