Habitable or Not? Astronomers Probe Exoplanet TRAPPIST-1 d Using the Webb Telescope 

Could Earth-sized exoplanets be habitable? A new study led by Caroline Piaulet-Ghorayeb, a previous member of the Center of Research in Astrophysics of Quebec, suggests it’s still too soon to say—at least when it comes to TRAPPIST-1 d.