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        Invisible Universe Revealed | Full-Length Broadcast

        Follow the historic rescue of Hubble—the space telescope that unveiled the cosmos. This program premiered on April 22, 2015 on PBS.

        Twenty-five years ago, NASA launched one of the most ambitious experiments in the history of astronomy: the Hubble Space Telescope. In honor of Hubble's landmark anniversary, NOVA tells the remarkable story of the telescope that forever changed our understanding of the cosmos. But Hubble's early days nearly doomed it to failure: a one-millimeter engineering blunder had turned the billion-dollar telescope into an object of ridicule. It fell to five heroic astronauts in a daring mission to return Hubble to the cutting edge of science. This single telescope has helped astronomers pinpoint the age of the universe, revealed the birthplace of stars and planets, advanced our understanding of dark energy and cosmic expansion, and uncovered black holes lurking at the heart of galaxies. Join NOVA for the story of this magnificent machine and its astonishing discoveries.

        For classroom resources featuring video segments from this program, check out Discovering the Accelerating Universe and Hubble & the Expanding Universe.

        This resource is part of the NOVA: Full-Length Broadcast Collection.

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