The James Webb Space Telescope has found strong evidence that the rocky lava world HD 3167 b has an atmosphere, despite circling its star every 24 hours under extreme heat. The surprising discovery could help scientists understand how rocky planets retain atmospheres and what the young, molten Earth may once have looked like.
The planet HD 3167 b consists partly of molten rock. Nevertheless, it probably has an atmosphere, which is considered almost impossible among astronomers. What is behind it?
Researchers at the University of Chicago used the James Webb Space Telescope to detect an atmosphere on the exoplanet HD 3167 b, providing new insights into the evolution of rocky planets.