TRAPPIST-1d: A Rocky World, But No Earth-Like Atmosphere Found Webb Telescope Delivers Crucial Data, Dimming Hopes for Familiar Habitability on Intriguing Exoplanet The quest for life beyond Earth has long been captivated by the TRAPPIST-1 system, a planetary haven orbiting a dim, ultracool dwarf star just 40 light-years away. Among its seven known exoplanets, TRAPPIST-1d…