Christianity Today recently interviewed Colin Nicholl about his new book on the star of Bethlehem, which argues that the star was a comet. And Justin Taylor just put up a positive post on the book. Earlier in the year, it got some positive coverage from Tim Challies, Tim Keller, and others. The book's endorsements are highly impressive. You can read them in Justin Taylor's post linked above. I expect the book to get a lot of coverage during the upcoming Christmas season.
But I have some problems with Nicholl's argument. You can read my review of his book at Amazon here.