KYRA PHILLIPS, CNN ANCHOR: "CNN 20" today: celebrating a decade in space, the Hubble space telescope.</s>BEGIN VIDEO CLIP, APRIL 24, 1990) NASA MISSION CONTROL: We are go for main engine start, T-minus, 6, 5, 4, 3, 2, 1, and lift off of the space shuttle Discovery with the Hubble space telescope, our window on the Earth.</s>MILES O'BRIEN, CNN SPACE CORRESPONDENT: The Hubble space telescope was obviously a very high-profile launch, and the Hubble itself had been touted for years by NASA as performing wonders, as far as the astronomical world was concerned. The Hubble space telescope was put into orbit with a laundry list of fundamental questions to answer. Probably at the top of the list was how fast the universe is expanding? How old is the universe? It was the first telescope to definitively find proof of black holes, something that astronomers had talked about for years and years. The Hubble space telescope was a disappointment initially. It was unable to see straight. And NASA was embarrassed when it had to announce this to the world. Nevertheless, Hubble was able to conduct science during the period of time before the first repair mission occurred.
CNN 20: Discovery/Hubble Telescope Launch, April 24, 1990