Thalassa  is a moon of Neptune.


  • It is the second closest moon to Neptune.
  • Thalassa is the Greek word for sea.
  • It is an irregularly shaped moon.
  • It was discovered in September 1989 after the Voyager 2 flyby.
  • Neptune's gravity is pulling it in, and Thalassa will crash into the planet or be broken apart and made into rings.

Neptunian Moons
Naiad Thalassa Despina Galatea Larissa S/ 2004 N1

Proteus Triton Nereid Halimede Sao Laomedeia Psamathe Neso