Earth

Japanese Name

ちきゅう

chikyuu

Description

Earth is the third planet from the Sun and the only known celestial body that supports life. It is a dynamic and diverse planet, characterized by its atmosphere, water, landmasses, and a wide range of ecosystems. Earth has unique conditions that make it habitable, such as its distance from the Sun, presence of liquid water, and oxygen-rich atmosphere.

Earth formed about 4.5 billion years ago from dust and gas orbiting the young Sun.
In its early years, Earth was extremely hot and bombarded by asteroids and comets.
Over time, the planet cooled, forming a solid crust and early oceans.
The first simple life forms appeared around 3.5 billion years ago.
Multicellular life evolved much later, leading to complex organisms.
Earth has undergone many changes, including ice ages and mass extinctions.
Today, Earth is the only known planet to support life, with diverse ecosystems and climates.