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Thursday, May 19, 2022
Home Three of the TRAPPIST-1 planets — TRAPPIST-1e, f and g — dwell in their star’s so-called “habitable zone,” shown in green. This is the band around the star where temperatures are just right — not too hot, not too cold — for liquid water to pool on the surface of an Earth-like world. (NASA/JPL-Caltech) Three of the TRAPPIST-1 planets -- TRAPPIST-1e, f and g -- dwell in their star's so-called "habitable zone," shown in green. This is the band around the star where temperatures are just right -- not too hot, not too cold -- for liquid water to pool on the surface of an Earth-like world. (NASA/JPL-Caltech)

Three of the TRAPPIST-1 planets — TRAPPIST-1e, f and g — dwell in their star’s so-called “habitable zone,” shown in green. This is the band around the star where temperatures are just right — not too hot, not too cold — for liquid water to pool on the surface of an Earth-like world. (NASA/JPL-Caltech)

Three of the TRAPPIST-1 planets -- TRAPPIST-1e, f and g -- dwell in their star's so-called "habitable zone," shown in green. This is the band around the star where temperatures are just right -- not too hot, not too cold -- for liquid water to pool on the surface of an Earth-like world. (NASA/JPL-Caltech)

Three of the TRAPPIST-1 planets — TRAPPIST-1e, f and g — dwell in their star’s so-called “habitable zone,” shown in green. This is the band around the star where temperatures are just right — not too hot, not too cold — for liquid water to pool on the surface of an Earth-like world. (NASA/JPL-Caltech)

This artist’s concept shows what the TRAPPIST-1 planetary system may look like, based on available data about the planets’ diameters, masses and distances from the host star. (NASA/JPL-Caltech)