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World type · Water world

Ocean World

A world with a large body of liquid water — most securely the global oceans hidden beneath the ice of moons like Europa and Enceladus, and possibly some water-rich exoplanets. Ocean worlds are among the most promising places to search for life beyond Earth.

Highlights

  • Global oceans beneath ice — the best places to look for life

Knowledge connections

Sources

The primary and reference sources this topic draws on.

  • NASANational Aeronautics and Space Administration

    Mission data, planetary science, space telescopes, and public-domain imagery.

    Most NASA-produced imagery is in the public domain; individual items are checked for usage terms before publication.