The Solar System is our immediate neighborhood and its planets and moons have shared the same astrophysical environment, e.g., experienced the same evolution of our central star, the Sun. Nevertheless ...

and nine months in orbit around the biggest moon in the solar system, Ganymede. The European Space Agency’s billion-dollar JUpiter ICy moons Explorer will be an exciting mission of firsts.

Mars is a famously red object in our solar system, but it’s not the reddest ... It’s one of the four biggest moons in orbit around the gas giant. The others are Io, Ganymede and Callisto.

The exploration of ocean worlds and icy moons in our solar system has become a focal point in the search for extraterrestrial life. These celestial bodies, particularly Europa and Enceladus ...

Our solar system is already teaming with nearly 200 moons, and we just got 12 more to add to the list. A team led by astronomer Scott Sheppard out of the Carnegie Institution for Science ...