Our System
The Solar System
8
Planets
290
Moons
4,568 Billion Years
Age
The Sun
The center of the Solar System. Like all stars it is mostly composed of hydrogen and helium
The Planets
The planets composing the solar system
Inner Planets
Mercury
Closest planet to the sun. Smallest planet in the Solar System
Venus
The hottest planet of the System. It is similar to earth in structure and size
Earth
You are here. Largest of the inner planets, and the only place in the universe where life is known to exist
Mars
Mars has a thin atmosphere made primarely of carbon dioxide and two natural satellites: Phobos and Deimos. It’s red color comes from iron oxyde(rust) in it’s soil.
Outer Planets
Jupiter
The biggest planet in the Solar System. It is 2.5 times the mass of all the other planets put together!
Saturn
Distinguished by it’s extensive ring system. Saturn has several similarities to Jupiter
Uranus
Uniquely among the planets, it orbits the Sun on it’s side. This gives the planet extreme seasonal variation.
Neptune
Farthest planet in the Solar System.