A planetary system 116 light-years from Earth has a peculiar pattern. It could flip the script on how planets form, ...

Planetary systems in the Milky Way galaxy tend to follow a particular pattern: rocky planets toward the center, closest to ...

Of the solar system’s planets, Saturn piques the human imagination with its signature rings and impressive moon count of 274. But compelling new research reignites theories of an ancient collision ...

Enceladus, one of Saturn’s smallest moons, has long fascinated scientists with its icy surface and mysterious geysers.

When people speak of the northern lights, they are typically referring to Earth’s spectacular display of aurora borealis: green, purple, and red waves.

Celestial spectacle will be at its most impressive on 28 February, when Mercury, Venus, Jupiter, Saturn, Uranus and Neptune will align across the sky ...

This weekend, six planets are set to share the sky in a rare “planet parade,” giving stargazers a short but magical window to ...

A newly studied solar system breaks the usual planet pattern, raising fresh questions about how rocky and gas planets form.

The official number of exoplanets—planets outside our solar system—tracked by NASA has reached 6,000. Confirmed planets are added to the count on a rolling basis by scientists from around the world, ...