Earth and its Movement

The Earth

About 4.6 billion years ago, a large nebula (a collection of gas and dust before it becomes a star) exploded, creating many small particles. These small particles gathered under the force of gravity and grew larger. They collided and stuck together, forming the Earth. It is the only known planet to support life.

And the idea that the Earth is round has been known since ancient Greece, more than 2,000 years ago.

The reasons why life exists only on Earth are not fully understood.

Several factors may contribute to this, including the Earth's distance from the sun, its atmosphere, its water, its magnetic field, and the origin of life.

Approximately 70% of the Earth's surface is covered by water, with the remaining 30% being land.

The Earth's surface is abundant in liquid water, and its atmosphere, composed primarily of nitrogen and oxygen, maintains an average temperature of around 15 degrees Celsius, creating an environment suitable for life to thrive.

The Earth rotates on its axis once every 24 hours, from west to east. This motion is called axial rotation.

The apparent movement of the sun and stars from east to west is caused by the Earth's rotation on its axis.

The motion of stars throughout the day is an illusion caused by the Earth's rotation on its axis. Therefore, the observed movement of stars varies depending on the observer's location on Earth.