The diversity in mass and composition of planetary atmospheres stems from the different building blocks present in protoplanetary discs and from the different physical and chemical processes that these experience during the planetary assembly and evolution. This review aims to summarise, in a nutshell, the key concepts and processes operating during planet formation, with a focus on the delivery of volatiles to the inner regions of the planetary system.

中文翻译：

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设置阶段：行星形成和挥发性交付

行星大气质量和组成的多样性源于原行星盘中存在的不同构建块，以及它们在行星组装和演化过程中经历的不同物理和化学过程。这篇综述旨在概括地总结行星形成过程中的关键概念和过程，重点是将挥发物输送到行星系统的内部区域。