New Study Suggests Cloudy Weather and Molten Metal Downpours On Rogue Exoplanet

An artist’s concept of the free-floating planet PSO J318.5-22. Astronomers have found evidence that the planet is covered with clouds which rain down molten metals, even in the coldness of interstellar space. Image Credit: MPIA/V. Ch. Quetz

We tend to define planets as objects that need a star around which to revolve. Yet, as [...]