noun
- a large celestial body that orbits a star and does not produce its own light
- specifically, any of the eight large bodies orbiting the Sun in our solar system
Examples
- Mars is the fourth planet from the Sun.
- Scientists discovered a new planet orbiting a distant star.
- Earth is the only planet known to support life.
- Jupiter is the largest planet in our solar system.
- The planet Venus is often called the morning star.
- Astronomers study planets in other solar systems.
- Mercury is the closest planet to the Sun.