Planet Earth Facts

1. The Earth is around 4.6 billion years old according to scientists.

2. The Earth is the densest planet in the Solar System.

3. The Earth’s atmosphere is composed mainly of nitrogen (78%), oxygen (21%), argon (.93%),
and carbon dioxide (0.03%).

4. Earth’s atmosphere divided in 5 sections from the surface: Troposphere (0-13 km), Ozone Layer (13-25 km), Stratosphere (25-50 km), Mesosphere (50-75 km), and Thermosphere (75-150 km)

5. Earth is the fifth largest planet in the Solar System.

6. The Diameter of the Earth is 12,756 km (7,926 miles)

7. The earth’s orbital speed is 29.8 km per second (66,660 mi/hr)

8. Earth has only one satellite, the Moon. The Moon is the second brightest object in the sky from Earth.

9. Earth has an average surface temperature of 13°C (55.4°F).

10. The greenhouse effect raises Earth’s temperature 35°C(95°F).

11. Earth’s distance from the Sun – Min. 146 million km (91million miles) Max. 152 million km (94.5 million miles).

12. Earth is composed of: iron (32%), oxygen (30%), silicon (15%), magnesium (14%), sulfur (3%), nickel (2%), calcium (1.5%), aluminum (1.4%) and the remainder made up of other elements.

13. Earths main tectonic plates: African plate, Antarctic plate, Indo-Australian Plate, Eurasian Plate, North American Plate, South American Plate, and the Pacific Plate.

14. Earth has several layers with unique chemical and seismic properties: Crust (0-40 km), upper mantle (40-400 km), transition region (400-650 km), lower mantle (650-2700 km), D layer (2700-2890 km), outer core (2890-5150 km), and the inner core (5150-6378 km) from the surface.

15. The Earth is not perfectly round, rather it is an oblate spheroid. This is due to the planet’s equatorial bulge.

16. The magnetic poles of the Earth gradually flip flop about every 200,000 to 300,000 years.

17. The deepest spot on Earth is under the ocean in the Mariana Trench at 35,813 feet below sea level.

18. Oceans cover about 70% of the Earth’s surface, much of which has never been explored.

19. Due to Earth’s distance from the Sun, it takes about 8 minutes and 19 seconds for light to reach the planet from the Sun.

  • you know who

    this is just boorinng

  • MAIKY

    Hi there is no such thing as “Earth”! And stars are comets or galaxies not “SUNS”

  • kaitlyn berger

    does any body know earths percentage of gravity?

  • SHUT UP I’M ANGRY

    Please. Everyone, SHUT UP! Religion doesn’t belong on a scientific website (because some people don’t believe in it). And all you idiots trying to be funny and comment about random things, do us all a favor and grow up. M’kay bye!!

  • Earth

    Don’t hate me I am doing the best I can do with all your pollution. Sincerely,
    Earth
    P.S. No I really would NOT like to know that I will explode in around 7 billion years, thank you very much.

  • cotton candy

    hello this is cool to know about earth because this is a time for the new generation to understand what we too teens have learnd about our solar system. The only reason why I’m stating this is that I have a report to do on all of our planets even the asteroids, comets, the diffrent satilites, the kupier belt, and also our four new dwarf planets called eris, ceres, pluto, and E14 ( which is an egg shaped planted behind the kupier belt ). I hope we have all learned somthing new and exciting.

  • Christian

    God made this universe and I have proof!. If the Earth was formed how scientists say and humans were made from gorillas, who made gorillas and other animals?

  • Stretch

    Actually, the Earth kinda has two moons. Besides the moon we all know, there is a second one that doesn’t orbit the Earth, rather it follows the Earth as it orbits the Sun.

    “The Universe – Discovery Channel”

  • Mac

    Wow ! GOD created earth full of fun facts. But – it is NOT as old as you say on this page.

  • http://planetfacts.org kiko

    thw world wont end probably the next 90 yrs and the names sucks we should really change it and stop littering and help save the planet, maby theres little kids that want to live longer to see there future , u got to see your future so let them see theres cmon people

  • http://none mememe

    78% nitrogen 21% oxygen?

    later claiming earth is composed from oxygen at 30% of what earth is made from, meaning that would be well over 100% ntrogen afterwards…….

  • louisa

    1. God made this universe
    2. we’re not gonna die in 2012
    3. we should be thankful for what we have even if it’s not a lot. yes earth isn’t the coolest name and yeah it’s not the greatest world because of some people.. well a lot of people but God made this earth for us. so we could live on it. and we should thank Him. oh some of you might be saying well we can’t see God and why isn’t he here on earth of a real person like Buddha welll God is a spiritual supernatural Being who created Buddha (and all of us) and we can’t see Him because He lives in Heaven. But a long time ago we could have… during the time of the Romans and stuff. He sent His Son to save the world and to save the people of the world. true story. and now He lives with God and if we accept Him (Jesus) we can live with God forever. best news i’ve ever gotten in my life

  • Ibrish

    Dear earth Help me. i’m so cold, the sun is far from me. Let’s hug eachother, i think u don’t want to see me dying by freezing.
    Your best pal mercury

  • http://planetfacts.org Yo Momma BISSSHH !

    maann ! EARTH hass a lot of people whoo CACA ! ;) ; buhhh earthh is still COOL ! buuuhhh ALSO i wannna be an ALIEN andd live in anotherr PLANET ! yaayyyy ! :* .bwahaha ;

  • http://yahoo Lexx

    This Website helped me alot on the project I’ve been workingg on!(:
    Im so gladd My friend discovored it for mee….Welp,Im out so Deuces
    -Lexus

  • riztys

    Facts say that the Earth is the 5th LARGEST Planet in our Solar System. thanks

  • http://planetfacts.org/planet-earth-facts/ HACI :)

    earth is the 3rd planet in our solar system not 5th

  • http://www.hotmail.com isabella

    i love Earth!!!!!!!<3…if i were really big i would hug it!
    this website helped me with my 3rd grade science project about the planets!
    Exept Pluto….it's not a planet anymore………………
    well it is a DWARF PLANET!
    good thing earth is not a dwarf planet !

    HOORAY FOR EARTH!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!I LOVE EARTH!

  • saurav

    Mercury is hottest planet and Pluto is coldest
    Mercury and Venus don’t have satellite
    Earth has 1 satellite
    Mars has 2 satellite
    Jupiter has 17 satellite
    Saturn has 19 satellite
    Uranus has 21 satellite
    Neptune has 8 satellite
    Pluto has 2 satellite
    Mars is known as red planet

  • http://plant-facts boo im sad

    dosent it have the moon

  • lamer

    Actually the 2nd fact is wrong; Saturn is the densest planet…