The Cassini spacecraft has detected an ocean hiding under 25 miles of ice on Saturn's moon Enceladus. Italian researchers say that a gravity anomaly around the moon’s south pole revealed denser water was present beneath the icy surface.
Inside Higher Ed
Fighting Words? A professor compared Hamas to a rabid pit bull. Free speech couldn’t protect him from student vitriol.
What We Like Right Now Our favorite picks for the week of March 23, curated by Slate writers and editors.
Could Better Psychological Testing Prevent a Tragedy Like the Germanwings Crash? Probably not.