Recently, the spacecraft has been making close flybys of the Jovian moon Io, which is the most volcanically ... Another striking concept video (below) shows a structure called Steeple Mountain ...

Io is an incredibly active and extreme place, with glistening lava lakes and volcanic eruptions shooting sulfur and magma to ...

These lakes are far larger than their analogs on Earth, and their structure sheds light on how magma moves beneath the surface of Io. Io’s volcanism — probably present over the moon’s entire ...