For two years between 1896 and 1897, the skies of North America were invaded by a wave of airships possibly inhabited by alien beings. This book presents an in-

Relive the style, might, and glory of classic air warfare with Flying Legends 2022, a 16-month wall calendar featuring 13 full-color images of classic warplanes

During the turbulent times of the "Wild West," America's farmers, ranchers, and cowboys looked up into the sky and beheld "signs and wonders" that rival any UFO

"The world of Ufology has undoubtedly seen some strange cases over the years... but none so strange as these. Some the authors overlooked, others were simply to

This book presents the life and personality, the scientific and philosophical work of Ludwig Boltzmann, one of the great scientists who marked the passage from