只要其中有行星表现出适合居住的可能性，科学家就将对其表面大气层的化学成分进行生物特征方面的研究。
And if any seem habitable, scientists will study the chemical content of their atmospheres for the hallmarks of biology.
人们还对叶岩保存如此完好百思不得其解，有一种可能性是在化石在形成之时，古生物被迅速掩埋，而当时的环境并不适合细菌分解这些生物的软体部分。
Nobody knows exactly why they were so well preserved.One possibility is that the creatures were buried quickly and in conditions that were hostile to the decomposition of soft body parts by bacteria.
人们还对叶岩保存如此完好百思不得其解，有一种可能性是在化石在形成之时，古生物被迅速掩埋，而当时的环境并不适合细菌分解这些生物的软体部分。
Nobody knows exactly why they were so well preserved. One possibility is that the creatures were buried quickly and in conditions that were hostile to the decomposition of soft body parts by bacteria.
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