| Share
 
Science > Astronomy and Space Exploration > The Solar System

Earth

Earth is not perfectly round; it bulges at the equator and is flatter at the poles. From space the planet looks blue with white swirls, created by water and clouds.

  • Size: Four planets in our solar system are larger and four are smaller than Earth
  • Diameter: 7,926.2 miles (12,756 km)
  • Surface: Earth is made up of water (70%), air, and solid ground. It appears to be the only planet with water
  • Atmosphere: Nitrogen (78%), oxygen (21%), other gases
  • Rotation of its axis: 23 hours, 56 minutes, 4 seconds
  • Rotation around the Sun: 365.2 days

  • Satellites: 1
  • Mean Distance from Sun: 92.9 million miles (149.6 million km)
  • Rings: 0


Fact Monster/Information Please® Database, © 2007 Pearson Education, Inc. All rights reserved.

VenusThe Solar SystemMars

More on Planets - Earth from Infoplease:

  • PLANET EARTH - Planet Earth is a dense, rocky ball about 7,920 miles (12,750 km) across. It is one of nine planets circling our local star, the Sun. Earth is the onl
  • PLANET EARTH - The rocky ball that forms our world is one of nine planets in the Solar System. Earth is a sphere, with a slight bulge in the middle at the Equator, a
  • Escape from Planet Earth - Starring Brendan Fraser, Rob Corddry, Ricky Gervais, Jonathan Morgan Heit, Jessica Alba
  • Escape from Planet Earth 3D - Starring Brendan Fraser, Rob Corddry, Ricky Gervais, Jonathan Morgan Heit, Jessica Alba
  • earthperson: meaning and definitions - earthperson: Definition and Pronunciation

24 X 7

Private Tutor

Click Here for Details
24 x 7 Tutor Availability
Unlimited Online Tutoring
1-on-1 Tutoring
Best Website for Science Help & Chemistry Help