Quote:William Shatner explores our earth, and beyond, in search of the universe's most fascinating, strange and inexplicable mysteries. Each episode features contributions from scientists, historians, astronauts and other experts-each seeking to shed light on how the seemingly impossible actually can happen. Seeking answers to age-old questions that have mystified mankind for centuries. Things like, how was our earth born? Will we go back to the moon-or venture even farther? What dangers might lurk in the deep expanse of outer space? And perhaps the biggest of all-are we alone?