Astronomers have discovered an intriguing exoplanet which could be entirely covered in water.
Astronomers have discovered an intriguing exoplanet that could be entirely covered in water. The potential ocean world is called TOI-1452 b, located around 100 light-years away in the constellation of Draco.
The clues that this could be an ocean world are related to the planet’s radius, mass, and density. Although Earth has 70% of its surface covered by ocean, this water makes up less than 1% of our planet’s mass. But the planet TOI-1452 b has a density that suggests much of its mass, up to 30%, could be made up of lighter components like water.
This makes the planet potentially similar to some moons in our solar system like Jupiter’s moons Ganymede and Callisto, or Saturn’s moons Titan and Enceladus, which are thought to host liquid oceans. However, the oceans on these moons are hidden beneath thick crusts of ice because they are so far from the sun.
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