1993: Astronauts repair Hubble telescope
A mission to repair the faulty Hubble telescope in outer space is declared an unqualified success after astronauts completed the latest of a record five space walks.
Story Musgrave and Jeff Hofman made the longest space walk of the 11-day mission, spending seven hours and 21 minutes on their final task to unravel the 40 ft (12 metre) solar panels which power Hubble.
The mission is the result of a tiny mistake in the manufacture of the $1.55 billion telescope, which made the mirror flatter than it should be by just one-fiftieth of the width of a human hair.
Βι¶ΉΤΌΕΔ Archive: This clip from Newsround was first broadcast on 9 December 1993.