Which planets have water in our solar system?

The planets in the Solar System that have water?
Discover in this article which are the planets of the Solar System that have water

For NASA, the oceans are fascinating because they offer clues in the never-ending search for life beyond our Earth.


NASA video about ocean worlds.

NASA: what you need to know about the planetary oceans

  • The Earth owes its nickname 'Blue Planet' to the fact that 71% of its surface is covered with water. However, our world is not the only one with oceans.
  • Other planets have their own seas, though not necessarily H20.
  • NASA has shared a small video on YouTube where it reveals some data about the planetary oceans. Oceanic worlds exist in the most diverse forms in planets, dwarf planets and satellites.

Satellites with oceans and lakes

Europa, one of Jupiter's satellites, has a gigantic ocean hidden under its icy crust. Another moon of the largest planet in the Solar System is Ganymede, which may have several layers of ice and water between its crust and its core.

On the other hand, Enceladus, one of Saturn's moons has a global ocean buried with huge geysers, which hurl its contents hundreds of miles into space.

Titan, another satellite of the ring planet, is also estimated to be home to methane lakes. Yet beneath its surface, there would be a liquid ocean as salty as the Earth's Dead Sea. Triton, one of Neptune's distant moons, may also hide a deep ocean beneath its surface.

Dwarf planets and buried oceans

In the case of the dwarf planet Ceres, it is estimated - according to NASA - that 25% of its composition is water, part of which could be in a liquid state. Similarly, Pluto, once the ninth planet in the Solar System and now a dwarf planet, is thought to be home to buried oceans.

For NASA, the oceans are fascinating because they offer clues in the never-ending search for life beyond our Earth, for where there is water, there is a chance of finding life.

What are the planets in the solar system that don't have water?

Mercury, the planet that is closest to the sun, has very extreme temperatures so it is impossible for it to have liquid water on its surface. Currently experts have not found water on it.

Venus has conditions and temperatures that make the existence of water on this planet impossible.

Water beyond the Solar System

Two teams of NASA scientists have used the Hubble Space Telescope's lens to discover faint water signatures in the atmosphere of five distant planets in the Solar System.
"This work really opens the door for comparison of how much water is present in the atmospheres of different types of exoplanets, for example the hotter ones compared to the cooler ones."
Explained Avi Mandell, a planetary scientist at NASA's Goddard Space Flight Center in Greenbelt, Maryland.

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