The James Webb Space Telescope has captured its first direct images of carbon dioxide in a planet outside the solar system in HR 8799, a multiplanet system 130 light-years away that has long been a key target for planet formation studies.

The JWST has spotted the presence of carbon dioxide on HR 8799’s four known planets, part of a system astronomers use to explore the formation of our own system. The results are consistent with models of how the Solar System’s giant planets formed.