Juno reveals dozens of lava lakes on Jupiter’s moon Io

Jupiter's moon Io contains over 40 massive lava lakes, ranging from 10 to 100 kilometers in diameter, according to new high-resolution infrared images from NASA's Juno spacecraft. These lakes, far larger than Earth's, are hottest at their edges and likely capped by cooler crusts, offering insights into Io's volcanic activity and subsurface magma movement.