Conservatives are a small minority within the American professoriate, according to a major study whose results were released this month. The study, arguably the best-designed survey of American faculty beliefs since the early 1970s, found that only 9.2 percent of college instructors are conservatives, and that only 20.4 percent voted for George W.…

In early 1916, the legendary Yale University archaeologist Hiram Bingham III completed his third and final expedition in southern Peru. He shipped home 74 boxes of artifacts from Machu Picchu, a spectacular site in the Andes that is believed to have been the last major settlement of the Inca empire. Those boxes were supposed to be on temporary…

In the summer of 2003, the "Bulletin of the Atomic Scientists" published an essay warning that the United States was on the verge of losing the peace. Dozens of similar arguments appeared that year, but this one, written by Michael V. Bhatia, a 26-year-old graduate student, was as devastating as any of them. In 2007, to the surprise of…