If you want to host life beyond Earth, you need more than just a big rock in space—you also need an atmosphere, liquid water, and a reasonable distance from your star. That’s the gist scientists use to judge a world’s habitability, and TRAPPIST-1 e often sits at the center of that discussion because it’s a rocky planet roughly the size of Earth, located about 40 light-years away from us in the TRAPPIST-1 system.
Could TRAPPIST-1 e support alien life? That question has driven researchers to examine whether this exoplanet has key ingredients like an atmosphere and water, and whether its orbit places it within a comfortable “Goldilocks Zone” where conditions aren’t too hot and not too cold. The latest research, published in the Astrophysical Journal Letters, tackles these points not just about TRAPPIST-1 e itself, but also about how scientists should refine their strategies for searching for life beyond our solar system.
If you’re curious about space science, you can submit questions to NPR at shortwave@npr.org. For ongoing, sponsor-free access to Short Wave, consider supporting NPR through Short Wave+. This episode involved a team including producer Rachel Carlson and Jordan-Marie Smith, with edits by Rebecca Ramirez and Christopher Intagliata, factual checks by Tyler Jones, and audio engineering by Maggie Luthar.
