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Update on the 7 Earth-sized planets orbiting nearby TRAPPIST-1 – EarthSky

A new study of the seven Earth-sized exoplanets around TRAPPIST-1 indicate that all 7 planets are extremely similar to each other in makeup, but potentially quite…

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Artist’s concept of TRAPPIST-1 planets, highlighting the measurements of their diameters and masses. The TRAPPIST-1 star system is home to the largest batch of roughly Earth-sized planets ever found outside our solar system. It’s about 40 light-years away. Image via NASA/ JPL-Caltech/ University of Geneva.
An exciting discovery by the Spitzer Space Telescope in 2017 revealed seven Earth-sized planets orbiting the nearby star TRAPPIST-1, less than 40 light-years away. Details about these planets…

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