Habitable ocean world K2-18b may actually be inhospitable gas planet

A distant planet once touted as a potential location to look for alien life is actually most likely to be inhospitable, according to astronomers who have found it probably lacks a solid surface.

In 2015, astronomers discovered a planet 110 light years away called K2-18b, which later analysis estimated to be a super-Earth or mini-Neptune about eight times the mass of our world.…