Io is the most volcanic body known to science, and researchers have puzzled over its history for years. A new report suggests it was born this way. This image revealing the north polar region of ...
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 ...
"Io represented a big mystery because its surface doesn't hold a record of its history the way that the surfaces of less active moons do." The solar system's most volcanic body, the Jupiter moon ...
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 ...
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 ...
Ganymede’s shadow on Jupiter. Image: NASA/JPL-Caltech/SwRI/MSSSImage processing by Thomas Thomopoulos © CC BY (main image)Image processing by Brian Swift © CC BY ...