Saturn’s largest moon, Titan, might have formed after a collision with a lost moon, according to new research.

Six planets, Mercury, Venus, Neptune, Saturn, Uranus and Jupiter, are currently visible in the evening sky and can be seen with the naked eye or binoculars.

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 ...

SIX planets will align in the evening sky this week in a rare cosmic phenomenon you’ll be able to see with your own eyes. Mercury, Venus, Neptune, Saturn, Uranus, and Jupiter will all appear ...

On 1990, NASA's Pioneer 11 spacecraft left the solar system! This was the second spacecraft to travel beyond the planetary part of our solar system, which ends at Neptune's orbit. An ...

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