Linked from

The 33 pages that link to Earth, each with the reason it gives.

• Planetary habitabilityBroader topic: Earth is the sole confirmed example of a habitable world and a reference for habitability criteria.

• Escape velocityBroader topic: Its surface escape speed is about 11.2 kilometers per second, ignoring atmospheric drag and rotation.

• Axial tiltBroader topic: Earth's axial tilt of about 23.4 degrees produces familiar annual seasons.

• PlanetBroader topic: Earth is the best-studied example of a habitable planet.

• Great FilterBroader topic: Its single biosphere is the only empirical record available for estimating life's evolutionary transitions.

• Oblate spheroidBroader topic: Earth’s rotation makes its equatorial radius larger than its polar radius.

• Terrestrial planetBroader topic: Earth demonstrates that a terrestrial planet can sustain oceans, plate tectonics, and a life-bearing atmosphere.

• Sidereal yearBroader topic: The sidereal year measures this planet’s revolution around the Sun.

• Pale Blue DotBroader topic: The pale speck at the center of the image is Earth.

• Titius–Bode lawBroader topic: Its orbit provides the law’s reference distance of one astronomical unit.

• Big HistoryBroader topic: Earth provides the planetary setting for the emergence of life and humanity.

• Equatorial bulgeBroader topic: Earth's equatorial radius is about 21 kilometers greater than its polar radius.

• IAU definition of planetBroader topic: Earth satisfies all three criteria and serves as a familiar example of a planet.

• The Blue MarbleBroader topic: Its oceans, continents, and clouds form the recognizable subject of the photograph.