Ann Druyan

After decades of public denial, the Pentagon now grudgingly acknowledges unidentified aerial phenomena (UFOs) exist. CBS’s “Sixty Minutes” reports that a U.S. Senate intelligence committee has ordered the director of national intelligence and the secretary of defense to deliver a report on the mysterious sightings by next month.

With the holidays approaching it’s a great plan to target fans of particular genres with gift books ideal for their interests. Beyond an Albert Einstein action figure, here are top popular science titles for aficionados of the category.