It is far from certain how simple chemical reactions became interconnected networks that gave rise to life on early Earth. Exploring the possible ways in which this could have occurred is an active area of research and a collection of articles in this issue consider what chemical steps may have been taken on the path towards life as we know it today.

中文翻译：

---

人生课程

简单的化学反应如何变成相互联系的网络，从而在地球早期产生生命，这一点尚不确定。探索可能发生这种情况的方式是一个活跃的研究领域，本期的一系列文章考虑了我们今天所知道的在迈向生命之路时采取了哪些化学步骤。