After Friday's spectacle, a "planet parade" of this size won't appear in the night sky for several years, experts say.

Callisto, the third largest moon in the entire solar system, orbits Jupiter from about 1.2 million miles away. The rocky world, discovered in 1610 by Italian Renaissance man Galileo Galilei, has earned a reputation as the most heavily cratered moon in our solar system.

Dust off your old telescope on a clear night and look up. If you find Jupiter, you’ll likely see four small dots to the side of the gas giant: they are the Galilean moons, four of the 95 natural satellites around the Solar System’s largest planet.

NASA's Juno spacecraft swooped in for a close look at a massive thunderstorm on Jupiter, revealing that it may have similarities to storms on Earth

NASA's Lucy spacecraft, on its way to Jupiter's Trojan asteroids, has its next target in its sights: the main belt asteroid 52246 Donaldjohanson. Currently 45 million miles (70 million kilometers) from the two-mile-wide (3.

Rayme Traub, a Sherrard native and NASA engineer, helped design the Europa Clipper probe. On Saturday, the probe will undergo a gravitational slingshot maneuver as it streaks above Mars.

The main belt asteroid Donaldjohanson is now in sight as the Discovery Program mission prepares for a flyby of the object in April.