Two books I've read give a summary of recent work & discoveries in this area.
In these books Miller-Urey is mentioned, briefly, but the major reports are on work since then -- very interesting, imho.
Andy Pross: "What is Life? How Chemistry Becomes Biology"
Nick Lane: The Vital Question, Energy, Evolution and the Origins of Complex Life"
The description of the first book reads like hype about being on the verge of a breakthrough. Mentions the author is excited with anticipation....that an understanding of how it really happens is just starting to be bridged. I guess these light years are about to be bridged by his palpable excitement....for myself I will let for the results of his epic journey before I get excited.