Roger Launius, Senior Curator at the National Air and Space Museum, explores humanity's early interest with space travel and the unknown secrets of the universe.

Roger Launius, Senior Curator at the National Air and Space Museum, recounts the story of the famed mission that put the first men on the surface of the moon.

Roger Launius, Senior Curator at the National Air and Space Museum, takes a look at the Apollo 8 mission and the famous Earthrise photograph, both taking place during a tumultuous year.

Former NASA Astronaut Kathryn Sullivan describes her role in deploying and repairing one of world's most significant scientific instruments.

Roger Launius, Senior Curator at the National Air and Space Museum, describes NASA's famed Stardust mission, responsible for collecting and analyzing comet dust.

Eric Drexler, often called "the Father of Nanotechnology," discusses how nanoengineering will facilitate future space exploration.