Some of TRAPPIST-1’s planets could have life-friendly atmospheres

One in particular looks a lot like Earth

illustration of two inner TRAPPIST-1 planets

PEERING THROUGH THE MIST  Starlight filtering through the atmospheres of the planets orbiting TRAPPIST-1 (shown here in an artist’s illustration of the two innermost worlds) can give scientists a clue to the planets’ habitability. Scientists have now probed the atmospheres of the four middle planets, which could be well-suited for life.

J. de Wit/MIT STScI/ESA/NASA

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