One of the largest unmanned submarines ever built is finally performing sea trials. But don't expect the U.S. Navy, which dreams of undersea drones that can span oceans, to proclaim the Proteus its ...

Beginning in the spring of 2016, both the ACT and the SAT will no longer require a Writing sub-test – the much-dreaded essay will be purely voluntary. Despite this change in policy, there are several ...

Two of the three runners posted a sub-60 half marathon, but can they go twice as far at that pace? After months of speculation and debate, the three athletes selected for Nike’s sub-two-hour marathon ...