Webb 望远镜观测到 helium 逃离WASP -107b, 一个热热的,浮肿的外行星 失去其大气层。 Webb Telescope observes helium escaping WASP-107b, a hot, puffy exoplanet losing its atmosphere.

天文学家利用James Webb空间望远镜探测出从外行星WASP-107b号外行星WASAP-107b号中逃脱的氦,云层的半径几乎是地球半径的10倍,这是所观测到的最可靠的前中转吸收。 Using the James Webb Space Telescope, astronomers detected helium escaping from the exoplanet WASP-107b in a cloud stretching nearly 10 times the planet’s radius, the most confident pre-transit helium absorption observed. 低密度的“超级泡泡”行星位于距离太阳210光年的距离210光年的地方,其轨道接近恒星的距离比水星接近太阳的七倍,由于恒星密集加热,该行星正在失去大气层。 The low-density "super-puff" planet, located 210 light-years away and orbiting seven times closer to its star than Mercury does to the Sun, is losing its atmosphere due to intense stellar heating. Webb的仪器证实大气中有水、一氧化碳、二氧化碳和氨, 但没有发现甲烷, Webb’s instruments confirmed water, carbon monoxide, carbon dioxide, and ammonia in the atmosphere but found no methane, suggesting strong vertical mixing. 研究结果对行星大气层在极端条件下如何演变提出了新的见解。 The findings offer new insights into how planetary atmospheres evolve under extreme conditions.