Science AMA Series: We have used synthetic biology to evolve the first artificial enzymes (XNAzymes), Ask Us Anything! reddit 
This story showed up in bbc news. A web search showed lots of posts, all two days old. Authors of the landmark paper in Nature show up on Reddit to talk about it. Kudos to Reddit.
Holliger
As well as potential applications in biotechnolgy and biomedicine, the possibility that a wide variety of alternative chemistries can form genetic systems capable of catalysis has implications for our understanding of the chemical origins of life on Earth, and elsewhere in the cosmos.
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