'The 4% Universe' is a book about the study of Dark Matter. This WSJ review by Peter Woit, whose own book,'Not Even Wrong', disses string theory, is quite informative. It even discusses the problems of the interface between astronomy and particle physics. The book sounds like it is worth a read:- http://online.wsj.com/article/SB10001424052748704754304576096530105958772.html?KEYWORDS...