• Atmosphere: A protective envelope dominated by nitrogen and oxygen.
  • Global Ocean: Connected saltwater basins regulate climate and support life.
  • Continents: Moving plates continually reshape Earth's land.
  • Magnetic Field: The geodynamo deflects much of the solar wind.
  • Iron Core: A solid inner core within a flowing liquid-metal outer core.
Charting EarthGenerating celestial model
3D celestial model — select a marker to explore Terrestrial planet
Observation guide

Find Earth in the sky

Deep dive

Our Ocean World

The third planet from the Sun and the only known world to support life.

Orbital motion

365.25 days

Field notes

Key features

  • Atmosphere
  • Global Ocean
  • Continents