On the other hand, a comparatively warm body with a small surface gravity, like Earth's moon, is unable to hold even the heaviest gas and thus lacks an atmosphere.
另一方面，像地球的卫星这种相对温暖、表面引力较小的天体，它们连最重的气体也无法容纳，因此也没有大气层。
The Sun, Moon, and the planets formed from a huge spinning gas cloud that collapsed into a gyrating disc.
太阳、月亮和这些星球形成于倒塌进一个旋转盘状物的一团巨大旋转汽云。
That moon would have interacted with a disk of gas surrounding Saturn at the time, dragging its orbit closer and closer.
这颗卫星在那时可能与土星外的气态光环发生了作用，造成它的轨道越来越靠近土星。
That means the orange moon has hundreds of times more liquid hydrocarbons than all the known oil and natural gas reserves on Earth.
这就意味着这颗橙色星球上的液态烃含量是地球上已知石油和天然气总储量的几百倍之多。
It could be that the planet managed to cling onto a moon when all the other gas giants in our solar system had already lost theirs.
可能是因为在我们太阳系的其他气态巨星已经失去自己的卫星的时候土星捕获了一个月亮。
The icy rings of Saturn could be what's left of an ancient ice-rock moon that got stripped and swallowed by the gas-giant planet. Christopher Intagliata reports.
土星外面有一圈冰冷的土星环，可能是遥远时期它的一颗由冰和岩石组成卫星的遗留物，而这颗卫星已经被土星这个巨大的气质行星撕裂、吞噬了。
"This water could allow the moon to be a gas station in the sky," said Taylor.
“这水可以使月球成为空中加油站，”泰勒说。
A remote world that became a focal point in galactic history, Yavin 4 is a jungle moon orbiting the gas giant of Yavin.
雅文4号卫星是环绕气态巨行星雅文运行的丛林卫星。这个偏远的世界是银河历史上的焦点。
A remote world that became a focal point in galactic history, Yavin 4 is a jungle moon orbiting the gas giant of Yavin.
雅文4号卫星是环绕气态巨行星雅文运行的丛林卫星。这个偏远的世界是银河历史上的焦点。
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