NOVA celebrates the 20th anniversary of the Hubble Space Telescope with a comprhensive look at how a simple instrument, the telescope, has fundamentally changed our understanding of our place in the universe. Hunting the Edge of Space takes viewers on a global adventure of discovery, dramatizing the innovations in technology and the achievements in science that have marked the rich history of the telescope. Then NOVA turns its attention to a new generation of ever-larger telescopes, poised to reveal answers to longstanding questions about our universe and, in turn, to raise new questions.