00:15Cosmic QuestEpisode 11: Galileo - Seeing Is BelievingBBC Radio 4 Extra Duration: 15 minutes Tue 10th Feb 2015, 00:15 on BBC Radio 4 ExtraAstronomer Heather Couper looks at the impact of Galileo's idea to systematically record his telescope observations. From June 2008.GenresFactualHistoryFactualScience & NatureSeriesCosmic Quest Source: BBC Online