Jupiter's Volcano Moon: Stunning Close-Up Photo from Space

NASA's Juno spacecraft captured the highest-resolution image of Io, Jupiter's third-largest moon and the most volcanic world in the solar system, in 22 years. The photo reveals new details about Io's north polar region, showcasing mountains as tall as 20,000 feet. Io, covered in volcanoes and experiencing about 100 times greater volcanic activity than Earth, is tidally locked to Jupiter, resulting in tidal friction that creates heat. The images, taken by Juno's JunoCam, are the highest-resolution photos of Io since NASA's Galileo orbiter in 2001. Juno is set to make even closer passes of Io in December 2023 and February 2024.