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 universe is vast and our journey to understand it has just begun.

Do you know how big the moon is? Or how many earths can fit inside the sun? The students at Potter Gray Elementary learned the answers and so much more about the solar system. The Orbit Earth Expo ...

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 ...