I really appreciate the note of the environmental analyst which helps readers who don't have deep knowledge of the field understand the meaning of this breakthrough in context. I wish more news agencies adopted the same practice.
The Financial Times, though pricey as a financial newspaper, is a good source for this. It regularly publishes in-depth articles with a wide range of interviews with experts for readers to learn the context of current issues (via their "News in-depth" series, and also their series called "The Big Read").