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An ocean world, ocean planet or water world is a type of planet that contains a substantial amount of water in the form of oceans, as part of its hydrosphere, either beneath the surface, as subsurface oceans, or on the surface, potentially submerging all dry land.
Aug 26, 2022 · While our planet is 70% water, oceans account for less than 1% of the planet's mass — whereas water on TOI-1452 b could make up as much as 30% of its mass, according to one simulation.
Apr 17, 2023 · NASA Newsletters. › Larger image GJ1214b, shown in this artist’s view, is a super-Earth orbiting a red dwarf star 40light-years from Earth. New observations from NASA’s Hubble Space Telescopeshow that it is a waterworld enshrouded by a thick, steamy atmosphere.
May 15, 2023 · The James Webb Space Telescope took its first close look at a "mini-Neptune" — the most common type of planet beyond our solar system — and found signs of water.
Dec 17, 2022 · The “water worlds” are outside their star’s habitable zone – the area in which temperatures allow liquid water on the surface of a rocky planet, potentially supporting life. But the new planet...
Nov 30, 2015 · Cassini. Water World. November 30, 2015. Although Enceladus and Saturn's rings are largely made up of water ice, they show very different characteristics. The small ring particles are too tiny to retain internal heat and have no way to get warm, so they are frozen and geologically dead.
There are more than 326 million trillion gallons of it on Earth, and the oceans contain about 96.5 percent of all the planet’s water. Less than 3 percent of all water on Earth is fresh water (usable for drinking), and more than two-thirds of Earth’s fresh water is locked up in ice caps and glaciers.
