Space has a knack for bending our sense of scale. The Moon feels close enough to touch—after all, we see its craters with ...

The outer planets of the Solar System are swarmed by ice-wrapped moons. Some of these, such as Saturn’s moon Enceladus, are ...

The moon plays an undeniably important role in our lives. It controls the tides, stabilizes the wobble of Earth’s tilt on its axis, and even helps in moderating the climate. The moon is also uniquely ...

Jupiter has 80 known moons, with more still being discovered by astronomers and amateur sky-watchers alike. That’s second only to Saturn’s 83 moons in our Solar System. The below video does a cool ...

An animation posted to Twitter has shocked social media users by showing the impressive size of Jupiter and just how rapidly the solar system's largest planet rotates. The animation posted by ...

Scientists traced the Moon's parent planet Theia to the inner Solar System, solving a 4.5-billion-year mystery.

Little is known about the long-destroyed moon-forming planet, Theia. But it may have been born in the inner solar system—just like Earth—a new study suggests ...

Theia, the world that helped form the Moon, came from the Solar System. Chemical clues in Earth and Moon rocks reveal this ...

This week it's all about planets. A planet’s opposition describes the point in its orbit when Earth is between it and the Sun. At that point the planet is, much like a full Moon, fully lit by the Sun ...