Universe And Solar System (Part-1)

Elements (By Weight Percentage)

Carbon is not included in the earth's crust.

The most abundant elements in the Earth's crust are oxygen in the first place and silicon in the second place.

The Sun, Moon and all those objects which shine in the sky during the night are called celestial bodies.

The Sun, Moon and all those objects which shine in the sky during the night are called celestial bodies.

It is the brightest star that appears nearest to either celestial pole at any particular time.

Owing to the precession of the equinoxes, the position of each pole describes a small circle in the sky over a period of 25,772 years.

Each of a succession of stars has thus passed near enough to the north celestial pole to serve as the polestar.

This theory explains how our universe might have started in the first place.

What is the Big Bang Theory?

• The Big Bang Theory is the most widely accepted explanation for the origin of the universe.

• It states that the universe began as a very hot, dense point (singularity) about 13.8 billion years ago, and has been expanding ever since.

1. It is another name for the planet Venus.
2. It is the hottest planet in the solar system.
3. It is also known as "Earth's Twin" .
4. It is the brightest planet in the solar system.
5. It is also known as the "Evening star" and "Morning star" as it can be seen in the morning and evening with open yes.