现在通过新的测量方式测得这颗行星的大气既非有稠密超热的蒸汽组成，亦非由剧毒的氢气云团组成。
Now new measurements show that GJ 1214b's atmosphere is made of either dense, ultrahot steam or a noxious, cloudy haze of hydrogen.
科学家说，烟柱看上去主要是由水蒸汽组成的，其中含有的火山灰很可能是80年代火山爆发的残余物。
The plume appeared to be mostly steam, and scientists said any volcanic ash that was included was probably from past eruptions during the 1980s.
他发现组成部分正在分离——氢气落入恒星里面，而水蒸汽留在外围，尘埃还在更外面。
He saw that the constituent parts were being separated, with hydrogen gas falling into the star while water vapour remained farther out and the dust was farther out still.
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