The Solar System consists of the Sun and the objects that orbit around it, including planets, moons, asteroids, comets, and other celestial bodies. The planets in the Solar System are categorized into two main types: terrestrial planets and gas giants.

Planetary Order:

The planets in the Solar System are arranged in the following order from the Sun:

1. Mercury - The closest planet to the Sun, Mercury is a small, rocky planet with a surface that experiences extreme temperature fluctuations.
2. Venus - The second planet from the Sun, Venus has a thick, toxic atmosphere and is known for its high surface temperatures and volcanic activity.
3. Earth - The third planet from the Sun, Earth is unique because it has liquid water on its surface and supports a diverse range of life.
4. Mars - The fourth planet from the Sun, Mars is known as the "Red Planet" due to its reddish appearance from iron oxide (rust) on its surface.
5. Jupiter - The fifth planet from the Sun, Jupiter is the largest planet in the Solar System and is known for its Great Red Spot, a massive storm.
6. Saturn - The sixth planet from the Sun, Saturn is famous for its prominent ring system.
7. Uranus - The seventh planet from the Sun, Uranus is an ice giant with a unique tilt that causes extreme seasonal variations.
8. Neptune - The eighth and farthest planet from the Sun, Neptune is known for its strong winds and deep blue color.

Earth as the Third Planet:

- Position: Earth is the third planet in the sequence of planets orbiting the Sun, following Mercury and Venus.
- Characteristics: Earth has several unique features:
- Liquid Water: About 71% of Earth's surface is covered by water, which exists in liquid form, supporting life.
- Atmosphere: Earth’s atmosphere is composed primarily of nitrogen and oxygen, which is crucial for life.
- Climate and Weather: Earth's climate and weather systems are regulated by its atmosphere, ocean currents, and various geographical features.
- Habitability: Earth is the only known planet that supports life due to its suitable conditions, including temperature, atmosphere, and water availability.

Earth is the third planet from the Sun, positioned between Venus and Mars. Its unique characteristics make it distinct from other planets in the Solar System.