🌋 Meet Jupiter's volcanic moon Io! 🌋⁠ ⁠ Io is the most volcanically active body in the Solar System.⁠ ⁠ 🧲 It has a metallic core (iron iron sulfide), a partially molten silicate mantle, and a rocky crust topped with sulfur frost.⁠ ⁠ 💥 Io’s heat doesn’t come from radioactive decay like Earth’s. Instead, Jupiter’s massive gravity stretches and squeezes Io as it orbits, creating tidal heating that keeps its insides burning.⁠ ⁠ 🌋 That heat fuels 400 active volcanoes, reshaping the moon non-stop

Jupiter's moon Io is the most volcanically active body in the solar system. Our #JunoMission collected data during multiple close flybys of Io, and analysis suggests that each volcano is likely powered by its own magma chamber, rather than a subsurface ocean of magma: https://www.missionjuno.swri.edu/news/juno-uncovers-heart-of-jovian-moon-s-volcanic-rage | NASA Solar System Exploration

Incredible: A huge eruption of one of Io's giant volcanoes seen from space! | Jock Williams Meteorologist