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

"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 ...

NASA's Europa Clipper is about to use Mars' gravitational pull to slingshot itself towards Jupiter's smallest moon later this ...

NASA Juno mission captured amazing new imagery of Jupiter's moon Europa. The spacecraft flew about 219 miles (352 kilometers) over the surface of the moon. Credit: Space.com | imagery credit: Credit : ...

While Mercury will be visible throughout early March, there will be two nights that provide especially good opportunities to ...

More pocked with craters than any other object in our solar system, Jupiter's outermost and second-biggest Galilean moon, Callisto, appears geologically unremarkable. In the 1990s, however, NASA's ...

March's skywatching includes a total lunar eclipse, a partial solar eclipse, planet sightings, and zodiacal light beaming ...

On Feb. 28, the one-day-old moon will pass in front of Mercury for observers in Australia and the south Pacific, and on March 1 the moon will make a close pass to Venus.

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

March’s night sky brings a total lunar eclipse, a rare chance to see Mercury, and shifting planets. Don’t miss these ...

More pocked with craters than any other object in our solar system, Jupiter's outermost and second-biggest Galilean moon, Callisto, appears geologically unremarkable. In the 1990s, however ...

One of this month's skywatching highlights is a total lunar eclipse on the night of March 13 — or more precisely, on the morning of the 14th when the Earth gets between the moon and the sun, and we ...