电影简介:

Secrets of the Dinosaur Mummy concerns “Leonardo,” a remarkably well-preserved juvenile Brachylophosaurus that lived (and died) 77 million years ago, during the late Cretaceous period. Discovered in Montana in 2000, Leonardo is pretty much intact (ex...

电影简介:

Inside the high-tech, high-stakes competition to create America’s newest fighter plane. NOVA goes behind the doors of the world’s two largest aerospace companies to record classified meetings, climbs into cockpits to fly the most revolutionary planes...