41.   The ACS was installed on the Hubble during a servicing mission to the orbiting space telescope in March.

42.   The astronauts sent to repair the Hubble space telescope got first crack at it in the virtual reality lab.

43.   The Hubble space telescope has captured many images of stars surrounded by the dust and gas clouds thought to be precursors for planets.

44.   The Hubble space telescope permitted the researchers to look past that dust.

45.   In exchange, the vice president gave the Russians a glove worn by an astronaut during the mission in December to repair the Hubble space telescope.

46.   China and Germany are cooperating on plans to launch a rival to the Hubble space telescope, Xinhua reported Friday.

47.   The photos of Venus were the first taken by Hubble and images of Mars were the most detailed taken by the space telescope, NASA said.

48.   The space telescope has become indispensable to astronomers since NASA corrected its technical problems in a spacewalking repair mission last November.

49.   The space shuttle Discovery headed home Wednesday after upgrading the Hubble space telescope with equipment scientists hope will open a window on the creation of the universe.

50.   These include the Hubble space telescope, which was repaired last December, and has provided new images of the comet.