Earth is 150,000,000 kilometers from the sun, and its diameter is 12,756. 70 percent of the Earth is covered by water and the rest is land. No other planet has oceans like earth. Most of the oxygen you need to live makes up about 20 percent of the gases in the Earth s atmosphere. Because of all the other gases in the earth s atmosphere if you were in space looking down at Earth you could usually see pat the clouds.
Earth has three main layers, crust, mantle, and a core.
Earth has one moon that is about the size of Mercury. If humans wanted to take a trip to Mars they would have to wear oxygen tanks since Mars s atmosphere is manly Carbon Dioxide. This Carbonated atmosphere is what makes Mars so red. Between 1801 and 1807, astronomers discovered 4 objects in between Mars and Jupiter, asteroids. Astronomers found 300 more asteroids were found in the next 80 years.