ESA's Mars Express orbiter captured footage of the Mars' moon Deimos pass in front of Ganymede, Europa, Jupiter, Io and Callisto (in that order). Credit: Space.com | footage credit: ESA/DLR/FU Berlin ...
The moon's ascending node (the point in the sky where its orbit crosses the ecliptic from south to north) is moving westward ...
A new volcanic hotspot on Jupiter’s moon Io has been detected, releasing six times Earth’s total energy output.