The solar system is like a big family, with the Sun as the parent and the eight planets as siblings. Each planet is unique, such as Mercury is the smallest and closest to the Sun. Earth is the ...

The eight planets in our solar system orbit the sun in roughly the same plane, because they all originally formed from the ...

Don't worry though—it's not like one planet simply fell out of the solar system. We'll explain what happened and also show you some tricks for remembering the order of all of the planets that ...

All eight of the solar system’s “major” planets appear in this illustration, but the actual number of planetary bodies orbiting our star is far greater.

The planets in order from the Sun are Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune. If you include the ...

Close stellar encounters could change the structure of our planetary system, potentially dooming Earth or other worlds to ...

Thus, only five planets will remain in our solar system." The chances are worse for all eight planets aligning within 1 degree of sky. According to Meeus, "this will occur, on average, every 13.4 ...

The planet parade is not an extremely rare occurrence — it tends to happen at least every couple of years. In fact, the eight-planet alignment last happened in June .

The Sun is orbited by eight planets, at least five dwarf planets, tens of thousands of asteroids, and around three trillion comets and icy bodies. Although not all objects of the solar system are ...

Scientists may have discovered a dwarf planet far beyond Neptune — an unearthing that may disprove a longstanding theory ...