The solar system's most volcanic body, the Jupiter moon Io, has been in turmoil for at least 4.57 billion years, right back to its birth and the infancy of the sun. Those are the findings of a ...

Close flybys of Io, one of Jupiter's moons and the most volcanically active world in our solar system, have revealed a lava lake and a towering feature called "Steeple Mountain" on the moon's ...

And then there’s Jupiter’s moon, Io. Io is the most volcanic object known to science. A rust-hued orb, its rocky seas of lava are larger than cities and its eruption plumes arc across the sky ...

Europa is slightly smaller than Earth’s Moon, but has a fun twist: it probably contains a salty ocean beneath its miles-thick surface. Jupiter’s northern cyclones in (left to right ...

Revealing Io's mysteries Io, first discovered by Galileo Galilei in 1610, is just slightly larger than our moon, but it's unlike anywhere else in the solar system. The rocky moon's surface is ...

Io’s north polar region was observed by JunoCam in October 2023, revealing mountains (towards the top of the image, on the border of the terminator—the line between day and night on the moon ...