巨大的星体，例如太阳能够使光弯曲，但是庞大的暗物质云会在宇宙中产生“气泡”。
Massive objects like the sun can bend light, but colossal clouds of dark matter create "bubbles" in the cosmos.
在天蝎座拥挤的星野背景衬托下显出暗色轮廓，这个多尘的宇宙云的形象让人联想起某种不祥的黑塔。
In silhouette against a crowded star field toward the constellation Scorpius, this dusty cosmic cloud evokes for some the image of an ominous dark tower.
我们目前 已知甲醛在宇宙分子云里面是很常见的，所以我们也可以认为早期的地球上有很多这种重要的化合物。
We know that formaldehyde is common in cosmic molecular clouds, so there's good reason to think Earth had plenty of this vital compound.
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