Topic: John Grunsfeld

One small (space) step for Hubble

Astronauts make a giant leap toward repairing the telescope in the first of five spacewalks.

NASA's Mr. Fixits give Hubble Space Telescope life-prolonging hardware

Space shuttle grapples Hubble; dances with a star

Shuttle's risky mission to repair Hubble

With custom-made tools and a rescue plan, the seven-member crew of the Atlantis aim to upgrade the iconic telescope.