Hunting the Edge of Space

The Mystery of the Milky Way chronicles the history of telescopes, from Galileo's refractor to Newton's reflector and beyond. This episode also looks at recent missions, including the Herschel Space Observatory's examination of the Milky Wa

The Ever-Expanding Universe investigates a battery of high-tech telescopes that are joining the Hubble Space Telescope on its quest to unlock the secrets of our universe, a cosmos almost incomprehensible in its size, age and violence.