25 years ago, NASA launched one of the most ambitious experiments in the history of astronomy: the Hubble Space Telescope. This single telescope has helped astronomers pinpoint the age of the universe, revealed the birthplace of stars, and uncovered black holes lurking at the heart of galaxies. In honor of its anniversary, NOVA tells the remarkable story that forever changed our understanding of the cosmos and our place in it.

Originally released by PBS, 2015. Streaming video file encoded with permission for digital streaming by Infobase on February 13, 2017.

Introduction: Invisible Universe Revealed (2:18); --Hubble Space Telescope (3:14); -- Mother of the Hubble (1:54); -- Atmospheric Distortion (1:19); -- Edwin Hubble (3:14); -- Making the Hubble (3:29); -- Launching the Hubble (3:05); -- Spherical Aberration (3:24); -- Blue Ribbon Committee (3:51); -- Fixing the Telescope (2:43); -- First Images (2:12); -- Birthplace of Stars (1:56); -- The Deep Field (2:23); -- The Age of the Universe (7:05); -- Galaxies and Black Holes (2:47); -- Maintenance and Upgrades (5:33); -- Legacy of the HST (1:39); -- Credits: The Invisible Universe Revealed (0:51); .