Research into Jupiter’s moons shows Io and Europa did not evolve apart but formed with opposite compositions from the ...

Add Yahoo as a preferred source to see more of our stories on Google. When you buy through links on our articles, Future and its syndication partners may earn a commission. A simulated view from the ...

Callisto, Jupiter's second-largest moon, may have a rocky surface with an ocean beneath the surface. If there was a contest for the most interesting moon in our solar system, Callisto would be a ...

A close conjunction of the waning crescent Moon (approximately 26% illuminated) and Jupiter occurred around 7 A.M. EDT, observable in the eastern sky before sunrise, with the Moon positioned between ...

While Io, the most volcanically active moon in the solar system, appears completely dry and devoid of water ice, its neighbor ...

With the moon out of the way on Jan. 18, bright Jupiter and Saturn become stand-outs in the January night sky.

If there was a contest for the most interesting moon in our solar system, Callisto would be a contender. Jupiter's second-largest moon has more impact craters on its surface than any other planetary ...