Jupiter and its four planet-size moons, called the Galilean satellites, were photographed in 1998 by Voyager 1 and assembled into this collage. They are not to scale but are in their relative ...

Jupiter isn't the only planet in the solar system with myriad moons. For decades, it has vied with its neighboring gas giant Saturn over which has the most natural satellites. Sign up for the Live ...

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

T he king of the planets is at its most glorious this month, shining brilliantly high in the south all night long. On 6 December, Jupiter is at its closest to the Earth – 612 million km away ...

From its mysterious core to its stormy surface, there's plenty to learn about the fifth planet from the sun. Jupiter and its volcanic moon Io peer out in this 2007 portrait taken by NASA’s New ...

Curious Kids is a series for children of all ages. If you have a question you’d like an expert to answer, send it to ...