Why Is Pentagon Interested in UFOs?

U.S. Navy pilots and sailors won’t be considered crazy for reporting unidentified flying objects, under new rules meant to encourage them to keep track of what they see. Yet just a few years ago, the Pentagon reportedly shut down another official program that...

Machines 'Friend One Another'…

At first glance, Facebook’s nascent robotic platform looks a bit … chaotic. In a new lab in its palatial Silicon Valley HQ, a red and black Sawyer robot arm (from the recently defunct company Rethink Robotics) is waving all over the place with a...