In fact, the helmet is actually more like an interstellar bubble, blown as a fast wind from the bright, massive star near the bubble's center sweeps through a surrounding molecularcloud.
其实这个宇宙头盔更像一个星际气泡，从这个气泡中心附近明亮的大质量恒星吹出一股疾风扫过周围的分子云。
2
A molecularcloud is a region containing cool interstellar gas and dust left over from the formation of the galaxy and mostly contains molecular hydrogen.
分子云是一个包含冷却星际气体和尘埃的区域，这些气体和尘埃是星系形成之后的残留物，主要由氢分子组成。
3
The process blasted out material to form the bubble structure of glowing gas against denser material in a surrounding molecularcloud.