Caleb A Scharf

One of The Barnes and Noble Review Editors' Picks: Best Nonfiction of 2012Selected by The Christian Science Monitor as one of "21 smart nonfiction titles we think you'll enjoy this summer…" Selected by The New Scientist as one of 10 books to look out for in 2012We've long understood black holes to be the points at which the universe as we know it comes to an end. Often billions of times more massive than the Sun, they lurk in the inner sanctum of...