"It's like a game of billiards around the solar system, flying by a couple of planets at just the right angle and timing to ...

Europa, one of Jupiter’s intriguing moons, is hiding an ocean beneath its icy shell — an ocean that might harbor alien life.

The vernal equinox occurs as Mercury stands still in Pisces and several of Jupiter’s moons transit in the sky this week.

The number of known moons in our Solar System has been rising for centuries, but astronomers say it has probably peaked – for ...

March's full moon, known as the Worm Moon, will bring a stunning total lunar eclipse, turning the Moon a deep reddish hue in ...

If there was a contest for the most interesting moon in our solar system, Callisto would be a contender. Jupiter's ...

NASA’s Europa Clipper is using Mars and Earth’s gravity to travel efficiently to Jupiter. The spacecraft will study Europa’s ...

A stunning Blood Moon March 13/14 caps off plenty of planetary action and sparkling stars in the sky this week.

Europa is the sixth largest satellite in our Solar System and the smallest of Jupiter’s four Galilean moons. Discovered by ...

Credit: NASA/JPL-Caltech Today (March 1), NASA's Europa Clipper spacecraft will fly past Mars, gliding just 550 miles (884 kilometers) above the Red Planet's surface. This maneuver is designed to ...