The Webb Space Telescope has found no evidence of an atmosphere at TRAPPIST-1 b, one of the seven rocky, Earth-sized planets orbiting a nearby star.
has found no evidence of an atmosphere at one of the seven rocky, Earth-sized planets orbiting another star.
The lack of an atmosphere would mean no water and no protection from cosmic rays, said lead researcherAs for the other planets orbiting the small, feeble Trappist star, “I would have been more optimistic about the others” having atmospheres if this one had, Greene said. Because the Trappist system’s innermost planet is bombarded by solar radiation — four times as much as Earth gets from our sun — it’s possible that extra energy is why there’s no atmosphere, Greene noted. His team found temperatures there hitting 450 degrees Fahrenheit on the side of the planet constantly facing its star.
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