Forty years ago, on the dusty plains known as the Sea of Tranquility, Neil Armstrong stepped off a lunar module and into the pages of history.
Star Trek imagines a future for humans in space where we explore alien worlds using advanced technology. As writers tried to include as much realistic science as possible, the stories have been an inspiration for students, scientists, inventors.
Do you want to believe? Seth Shostak of SETI talks about his hunt for aliens in this show about the search for life beyond Earth.
Richard Branson has formed Virgin Galactic and is now taking reservations aboard the maiden voyage of SpaceShipOne. Would you spend the estimated $200,000 for a 45-minute trip into space?