100 degree warm water: Astronomers discover possible ocean planet. ToI-270 d is about twice the diameter of Earth and lies about 70 light-years away.
Temperatures of up to 4000 degrees Celsius could prevail on the surface. Water can only exist there in a special state – as a “thick, hot liquid”. The planet always faces the same side of its sun. “Livable conditions could exist on the night side,” said the scientist.