麻豆传媒

This 2018 artist's concept shows what the TRAPPIST-1 planetary system may look like, based on available data about the planets' diameters, masses and distances from the host star (far left). New research shows that while TRAPPIST-1b, second from the left, has no atmosphere, TRAPPIST-1e, third from the right, could have a long-term stable atmosphere.