The unusual specimen raised eyebrows because it appeared capable of causing levitation. An official investigation has not settled the matter, some UFO enthusiasts say.

The popular history docuseries The Proof Is Out There returns to the History Channel with its season six premiere Friday, March 6 at 10/9c. During the season six premiere episode, a high-tech U.S.

The successful launch and testing of a giant airship-come-wind-turbine earlier this month has prompted discussion on whether they could be the future of sustainable power in China. Called the S2000 ...