Synopsis by Alice Day
Technology has given mankind the opportunity to travel to the moon and to orbit in space above the planet for long periods of time. The possibility that man will travel farther into the universe is an idea that space scientists have been considering. Practical Guide to the Universe: The Time Travelers looks at how spacecraft, manned or unmanned, might one day journey to the stars. Host Tom Selleck discusses the implications of prolonged space travel on humans, whose physical systems in weightless conditions are stressed, and undergo deterioration.