A fascinating look into space exploration. First, this series covers potential threats to the earth, including killer asteroids, solar flares and lethal alien virususes. Next, the series out... Read allA fascinating look into space exploration. First, this series covers potential threats to the earth, including killer asteroids, solar flares and lethal alien virususes. Next, the series outlines the history of the U.S. space program and some of the sacrifices made through our qu... Read allA fascinating look into space exploration. First, this series covers potential threats to the earth, including killer asteroids, solar flares and lethal alien virususes. Next, the series outlines the history of the U.S. space program and some of the sacrifices made through our quest to explore other frontiers. Finally, it follows the training, launch and successful mi... Read all