adjective
- relating to or belonging to a planet or planets
- affecting or involving the entire planet Earth
Examples
- Scientists study planetary motion to understand how planets orbit the sun.
- The spacecraft collected data about planetary atmospheres.
- Climate change is a planetary crisis that affects all nations.
- Planetary exploration has revealed fascinating details about Mars.
- The museum has an exhibit on planetary formation.
- Planetary boundaries define safe operating limits for humanity.
- Astronomers discovered a new planetary system in a distant galaxy.