The number of planets that orbit the sun depends on what you mean by “planet,” and that’s not so easy to define ...

Asteroids are rocky objects that orbit the Sun, just like planets do. There are millions of asteroids of very different shapes and sizes. Some are almost spheres, like planets, but most are ...

As such, the planets of your friends in order from closest to furthest are as follows: Sadly, there is no love for Pluto in ...

Here’s how it works. A planet-size object that possibly once visited the solar system may have permanently changed our cosmic neighborhood by warping the orbits of the four outer planets ...