The second stage of SpaceX's Falcon 9 rocket captured an amazing view of Earth during the launch of the Intelsat 40e ...

Jupiter and Mars will appear to make ultraclose approaches to the moon on two nights this week. Here's how to get the best view, starting tonight.

NASA's Juno spacecraft has discovered a giant volcanic hot spot on the surface of Jupiter's hellish moon Io. The eruptions in this area are chucking out six times the energy being produced by all ...

When JUICE reaches its destination in 2031 it will become the first European spacecraft to visit Jupiter. It will then spend three and a half years studying the icy satellites of Ganymede ...

Of course, when looking at Jupiter with a telescope or even a pair of binoculars, we also get a view of the famous Galilean satellites, so named because Galileo Galilei was the first to observe ...

Mars is still at its best, having reached opposition last month. Jupiter has many satellite transits visible in small telescopes. And early in the month, the Moon passes in front of the Pleiades ...

Asteroids that orbit close to the Earth inevitably cause us some anxiety due to the even remote possibility of a collision.