Can a planet be entirely made up of water?

The planet is completely made out of water (that is, any non-water substance makes up a negligible amount of its mass). There may be a non-water atmosphere above, but there’s no stone or metal center; the water goes down to the center.

What would a planet made entirely of water be like?

The hypothetical planet would likely have an ice core. Not a nice core – an ice core. Even hot water becomes ice when so much mass presses it together. Further from the core it might have a liquid ocean, then a liquid or ice crust.

What is the only planet that has water in its liquid form?

Earth
Though there are several celestial bodies in the Solar System to have a hydrosphere Earth still is the only celestial body known to have stable bodies of liquid water on its surface, with oceanic water covering 71\% of its surface, and liquid water is essential to all known life forms on Earth.

Why does liquid water continue to exist in our planet?

Liquid water, which is necessary for life as we know it, continues to exist on the surface of Earth because the planet is at a distance, known as the habitable zone, far enough from the Sun that it does not lose its water to the runaway greenhouse effect, but not so far that low temperatures cause all water on the …

How does Europa have liquid water?

Europa is a real game changer. The reason Europa has liquid water is because tides — similar to the tidal interactions between Earth and its moon — cause Europa’s ice shell and interior to flex during the course of its orbit around Jupiter.

What planet is made out of ice?

Uranus
Uranus is the second least dense planet in the solar system, indicating that it is made up mostly of ices.

How does water exist?

Much of Earth’s water is thought to have come from asteroids impacting the planet early in its history. Most of Earth’s water did come from asteroids, but some also came from the solar nebula. As Wu noted: For every 100 molecules of Earth’s water, there are one or two coming from the solar nebula.

Is it possible to make a planet made of water?

In an extreme hypothetical scenario, you can have a planet made entirely of water. The core will be ice due to the compression of surface water, liquid water on the surface closer to equator and ice landmass closer to the pole, and an atmosphere of water vapor.

Can a planet with a liquid water core be stable?

Especially if you place a moon around it for a literal tidal wave circling the planet. As long as you accept an ice core instead of liquid water core there is no issue with stability; once the water world exists it will be stable enough. Although anything that would normally rob a planet of its atmosphere would be a serious issue.

How stable is a planet with an ice core?

As long as you accept an ice core instead of liquid water core there is no issue with stability; once the water world exists it will be stable enough. Although anything that would normally rob a planet of its atmosphere would be a serious issue. How can I make this claim without doing numbers or looking references?

What are the properties of a water planet?

To be clear what the properties of this water planet should be: The planet is completely made out of water (that is, any non-water substance makes up a negligible amount of its mass). Most or all of the water on the planet’s surface is liquid (there may be polar ice caps, but they shall cover less than half of the planet).