Hycean worlds are also called ocean worlds. They're planets covered in oceans that also have thick hydrogen atmospheres.

Planet in ‘habitable’ zone could have rare oceans and a possible sign ... there is the potential for life — but researchers still aren’t certain that these Hycean planets could sustain ...

By Jackie Wattles, CNN (CNN) — Waters may be flowing on the surface of a colossal planet that lies about 120 light-years from Earth, according to new evidence uncovered by the James Webb Space ...

There are no confirmed Hycean exoplanets just yet. And there is no planet quite like K2-18b in our own solar system, and that makes planets like it “poorly understood,” according to NASA.

Some planetary scientists have dubbed these hypothetical planets Hycean worlds: ... In our Solar System, the habitable zone extends from just inside Earth’s orbit to just beyond Mars’ orbit.

Waters may be flowing on the surface of a colossal planet that lies about 120 light-years from Earth, according to new evidence uncovered by the James Webb Space Telescope.

There are no confirmed Hycean exoplanets just yet. And there is no planet quite like K2-18b in our own solar system, and that makes planets like it “poorly understood,” according to NASA.

The researches say that the Hycean Habitable Zone (HHZ), when compared to the terrestrial habitable zone, may include smaller ...

Waters may be flowing on the surface of a colossal planet that lies about 120 light-years from Earth, according to new evidence uncovered by the James Webb Space Telescope.

(CNN) — Waters may be flowing on the surface of a colossal planet that lies about 120 light-years from Earth, according to new evidence uncovered by the James Webb Space Telescope. The ...