This first Sky at Night of 2009 is a celebration of the humble (and Hubble) telescope, which is now 400 years old. It all began with Galileo . . . or did it? Patrick Moore furrows his brow over the news that an Englishman may have invented the first. Over the last 50 years Patrick has visited almost all of the worlds large telescopes, and there is some archive footage of some of these visits. Meanwhile, Chris Lintott visits some mighty examples in the USA, and astronaut Jeff Hoffman describes how he repaired the Hubble Space Telescope. Preparations are underway in NASA's watertanks for the next repair/update mission, which NASA hopes to be the last, because the next space telescope, the James Webb Space Telescope is scheduled to succeed it. In a unique visite we get to see how 10m glass mirrors are cast and polished under the Arizona Wildcats Football stadium, and talks about the future of Extremely Large Telescopes.
Other episodes for this season