About Earth
Earth is the third planet from the Sun and the only astronomical object known to harbor life. About 71% of Earth's surface is covered with water, earning it the nickname "Blue Planet".
🌟 Key Facts
- Type: Terrestrial planet
- Age: 4.54 billion years
- Diameter: 12,742 km
- Distance from Sun: 149.6 million km (1 AU)
- Orbital Period: 365.25 days
- Day Length: 24 hours
- Moons: 1 (The Moon)
💡 Interesting Facts
- Only planet not named after a Roman or Greek god
- Home to over 8.7 million species of life
- Atmosphere: 78% nitrogen, 21% oxygen
- 70% of Earth's fresh water is frozen in ice caps
- Magnetic field protects us from solar radiation
- Highest point: Mt. Everest (8,849m)
- Deepest point: Mariana Trench (10,994m)
- The only known planet with plate tectonics