NOVA: There have been claims that a great civilization predates ancient dynastic Egypt—one that existed some 10,500 years B.C.—and that this civilization was responsible for building the ...

“Middle-aged” countries NOVA: And what countries lie in the middle between old and young? Hewitt: In the middle you have a number of countries like China, India, and Mexico that are beginning ...

A Nova TV special, The Great Electric Airplane Race, airing Wednesday night on PBS, explores the possibility of using autonomous, battery-powered flight for commuting or taxi trips. As part of his ...