Legendary dog to leave his mark on another epic journey

(June 28, 2018) -- One small step for a dog, one giant leap for canines. Fifty years ago, the National Trails System was created to help connect people and the land. To celebrate that milestone, the National Park Service and the National Aeronautics and Space Administration (NASA) will send a small, plush version of Seaman, the legendary dog that explored the frontier with Lewis and Clark, on a new mission aboard the International Space Station.