Cast
An outward look into the universe, as scientists challenge traditional planetary thinking, and reveal the existence of unknown worlds: exoplanets.
31 December 1993
8 September 1964
20 November 1963
5 June 2007
17 March 1988
12 February 2010
14 May 1982
8 December 1965
23 April 2010
10 September 1969
9 August 2023
21 October 1971
20 October 1995
3 September 1971
15 March 1975
31 January 1979
29 June 1987
3 November 1989
2 December 2010
10 September 1974
24 October 2015