The weakest moon Jupiter’s moons are divided into two groups: the four Galilean moons (Io, Ganymede, Europa, and Callisto) and smaller, irregular moons. Ganymede is the largest of them, and NASA has ...

This gas giant has some really unique features that make it stand out. If you’re curious about space, learning a few things ...

Jupiter isn’t alone in this category; Saturn, Uranus, and Neptune are also gas giants, though Uranus and Neptune are often ...

We have rounded up the best binoculars for long-distance viewing, equally ideal for nature-watching and stargazing. Prime Day could see some of these drop in price, so keep your eyes open.

This montage shows the best views of Jupiter's four large and diverse "Galilean" satellites as seen by the Long Range Reconnaissance Imager (LORRI) on the New Horizons spacecraft during its flyby of ...