Planet Details
Earth
Our home planet, a vibrant world of oceans, continents, and life—the only place we know of so far that’s inhabited by living things.
Key Facts
Type
Terrestrial
Day Length
24 Hours
Year Length
365.25 Days
Gravity
9.8 m/s²
Course Information
Earth is the third planet from the Sun and the only astronomical object known to harbor life. While large amounts of water can be found throughout the Solar System, only Earth sustains liquid surface water. About 71% of Earth's surface is made up of the ocean, dwarfing Earth's polar ice, lakes, and rivers.