This is the last chance to catch the pair in conjunction this year—with Venus set to be unusually bright in the night sky.

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 ...

Jupiter has 95 known moons and many moonlets, which are believed to have been created as the CPD coalesced and broke apart. But how that process came about and evolved is still mostly a mystery.

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

Six planets are parading across the sky, appearing as some of the night's brightest stars. A few easy tips can help you identify them.

Saturn, Venus, Neptune, Uranus, Jupiter, Mars and Mercury will be visible in an uncommon planetary alignment this month.

Explore the fascinating world of magnetic games as Jupiter and its moons seemingly fall into a black hole. This captivating experiment showcases the power of magnetism in a visually stunning and ...

The hellish surface of a moon of Jupiter known as Io is riddled with hundreds of lava-spewing volcanoes that make the world one of chaos and violence. The brutal conditions also make Io intriguing ...

Pennsylvania stargazers are in for a treat this month, besides the snow moon, the planet Venus will shine at its brightest for the year after sunset, according to NASA. Then Mars and Jupiter will ...