The launch of the Hubble Space Telescope

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In 1990, NASA launched the historic mission which put into orbit the Hubble Space Telescope. The orbiting observatory has revolutionized astronomy and allowed us to peer deeper than ever before into the Universe. Alejandra Martins talks to astronaut, Kathryn Sullivan, about the Hubble mission and the telescope's initial teething problems. PHOTO: The Hubble Space Telescope (NASA)