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The 7 rocky planets orbiting TRAPPIST-1 may be made of similar stuff – UW News

A study accepted by the Planetary Science Journal shows that the planets of the TRAPPIST-1 system share similar densities. That could mean they all contain roughly…

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January 22, 2021
Artist’s depiction of the TRAPPIST-1 star and its seven worlds.NASA/JPL-Caltech/R. Hurt (IPAC)
The TRAPPIST-1 star system is home to the largest batch of roughly Earth-size planets ever found outside our solar system. Discovered in 2016 some 40 light-years away, these seven rocky siblings offer a glimpse at the tremendous variety of planetary systems that likely fill the universe.
A study accepted by the Planetary Science Journal shows that…

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