More actions
Order3
Names
Other namesTerra, Gaia
AdjectivesEarthly, Terrestrial, Terran
Demonyms
Symbol⊕
Physical properties
TypeRocky
Mass5.9722×1024 kg
1 [[
Radius km
Equatorial rad. km
Polar rad. km
BulgeExpression error
Designations
Classic-styleSol III
Exoplanet-styleSol d
This article was the featured article on 30 June 2023.
The Earth is the 3rd planet from the Sun. It is the only known place with life.
Exploration[edit | edit source]
Nearly all of Earth has been explored thanks to the help of Man-made satellites.[1]
Life[edit | edit source]
Earth was where human life originated. The only other places humans have been are The Moon and outer space.[2] Humans set foot on the moon in 1969.[3]
Surface[edit | edit source]
About 71% of the Earth's surface is covered in water.[4]
On land, Earth has landforms such as mountains, hills, valleys, plateaus, glaciers, deserts, and plains.[5]
Trivia[edit | edit source]
- Earth was originally believed to be at the center of the Solar System.[6]
Etymology[edit | edit source]
Earth's name comes from the Old English and Germanic words for "ground" and "earth."[7]
References[edit | edit source]
- ↑ Sheriff, Robert E. and Windley, Brian Frederick. "Earth exploration". Encyclopedia Britannica, 3 Aug. 2023, https://www.britannica.com/topic/Earth-exploration. Accessed 9 December 2023.
- ↑ Space exploration - Milestones, Achievements, History | Britannica
- ↑ July 20, 1969: One Giant Leap For Mankind
- ↑ How Much Water is There on Earth? | U.S. Geological Survey
- ↑ What are Landforms and The Types of Landforms on Earth | Earth Eclipse
- ↑ Britannica, The Editors of Encyclopaedia. "geocentric model". Encyclopedia Britannica, 2 Nov. 2023, https://www.britannica.com/science/geocentric-model. Accessed 9 December 2023.
- ↑ Lunine, Jonathan I. , Jeanloz, Raymond and Chapman, Clark R.. "Earth". Encyclopedia Britannica, 9 Dec. 2023, https://www.britannica.com/place/Earth. Accessed 9 December 2023