The James Webb Space Telescope has found the first definitive evidence of carbon dioxide in the atmosphere of an exoplanet located 700 light years from Earth, NASA announced Thursday. The planet, circling WASP-39, is a gas giant about the size of Saturn. The project proves the Webb Telescope will be able to identify carbon dioxide in the thinner atmospheres of rocky planets at closer range. Rocky planets with carbon dioxide-rich atmospheres also lead exo-geologists to investigate the possibility of terraforming planets in the future. (And no, I don’t know what the chart means. I think it just looks smart and cool and stuff.)