We know that formaldehyde is common in cosmic molecular clouds, so there's good reason to think Earth had plenty of this vital compound.

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。

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In the cold vacuum of space, radiation from massive stars carves away at cold molecular clouds, creating bizarre, fantasy-like structures.

在太空的寒冷真空之中，来自大质量恒星的辐射如同光剑一般切开了冰冷的分子云，创造出奇异梦幻的雕塑。

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In a kind of star assembly line, interstellar molecular clouds collapse, producing new stars, which then gradually push back the remaining gas and dust.

类似于一条恒星生产线，星际间分子云瓦解产生新恒星，然后新的恒星逐渐将剩下的气体和尘埃推走。

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But microwaves can carry astronomical details about the chemical composition of heavenly bodies, such as the molecular clouds in which stars are born, that other radio frequencies are blind to so the search is worthwhile.

ECONOMIST: Beneath the Southern Cross I stand