Seven Earth-sized worlds orbit the TRAPPIST-1 star, ~40 light-years away. @NASAWebb studied the innermost planet and measured its temperature and found little evidence of an atmosphere. These observations bode well for studying the rest of the planets: https://go.nasa.gov/42VAWiu
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NASA (nasa@social.beachcom.org)'s status on Wednesday, 29-Mar-2023 03:12:40 JST NASA