Almost all amino acids that make up biological proteins, for instance, are left-handed, so a self-replicating biological molecule of right-handed chirality could be suggestive of an alien organism.
比如说，几乎所有构成生物蛋白的氨基酸都是左手性的，所以出现右手手性的自我复制生物分子可能意味着发现了外星生物体。
Alien life, he will suggest, is almost certain to exist in many other parts of the universe: not just in planets, but perhaps in the centre of stars or even floating in interplanetary space.
他认为，外星生物，几乎肯定存在于宇宙的某个角落，不光是在行星上，还有可能存在于恒星的中心，甚至漂浮在星际空间。
Given the daunting distances between the stars, the real-life version will almost certainly be a lot less sensational than the movies depicting alien invasions or crash-landing spaceships.
考虑到星际之间令人畏惧的路程，真实生命的说法将几乎必然较之于电影中所描绘的外星人入侵或紧急降落的太空飞船要带来更少的耸人听闻的轰动效应。
Hawking claims in a new documentary that intelligent alien lifeforms almost certainly exist, but warns that communicating with them could be "too risky."
霍金在一部新拍摄的纪录片中断言有智慧的外星生命形式几乎可以肯定其存在，但他也警告人们，与他们相互交流也许“太过冒险”。
In a highly developed alien society, the habitats are almost infinite dimensional space.
在一个高度发达的外星文明中，有着近乎无限维度的生存空间。
In a highly developed alien society, the habitats are almost infinite dimensional space.
在一个高度发达的外星文明中，有着近乎无限维度的生存空间。
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