Using the James Webb Space Telescope, astronomers have found a "first of its kind" world, an exoplanet that is twice the size of Earth and has an atmosphere packed with steam.

Nearby exoplanet is a 1st-of-its-kind 'steam world,’ James Webb Space Telescope finds

Source: space
Source Link: https://www.space.com/james-webb-space-telescope-steam-exoplanet