William Balmer

Technologies for studying planets around other stars are advancing all the time. Along with those advancements come new ways to look for possible signs of life on those planets.

NASA's JWST recently detected carbon dioxide in the atmosphere of an exoplanet known as WASP-39b — a historical first.

We spoke with the scientists leading the first observations of TRAPPIST-1 using the James Webb Space Telescope (JWST) in order to understand what mysteries their observations will help unlock.