Try stargazing. Need a new idea to keep kids entertained? Try stargazing. Free learning activities and videos about the solar system Free learning activities and videos about the solar system Free ...

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

If you like it then you should put a ring on it. Saturn is home to the Solar System’s most epic ice rink. Being so far from the Sun, the water in its rings is frozen into ice. It is one of four ...

The way people think of the Solar System has changed many times throughout history. Before the development of the telescope, these ideas were based on what could be seen with the naked eye.

With a radius of 2,106 miles, Mars is the seventh largest planet in our solar system and about half the diameter of Earth. Its surface gravity is 37.5 percent of Earth’s. Mars rotates on its ...