In the past, it was thought that, because of this flexing, Io's interior might be home to a large magma ocean, stretching beneath its entire surface like a layer of tiramisu. However, research led ...
The source of Io's torment: Jupiter ... JIRAM probes the gas giant's weather layer, peering 30 to 45 miles (50 to 70 kilometers) below its cloud tops. But since NASA extended Juno's mission ...