Earth

The Earth is our home. So far, it's the only place that we know of that has life. Everywhere you look on Earth there is life. This is possible because Earth has lots of water. It's also just the right distance from the Sun. Some people call Earth the "Goldilocks planet." It's not too hot (like Venus), and not too cold (like Mars), it's just right!

Moons: 1
Diameter: 7,900 miles
Location: 3rd planet from the Sun
Average Surface Temperature: 59 degrees
Average Distance from Sun: 93 million miles
Characteristics: the only known planet with living organisms, water, and an oxygen-rich atmosphere
Significance: It's the perfect place for life to thrive.

Image credits: courtesy of NASA; quote, © AMNH.