Brian Cox and Robin Ince host a close encounter of the first kind with comedian Lucy Beaumont, astronomer Maggie Aderin-Pocock, Prof Tim O’Brien and science presenter Dallas Cambell to ask if UFOs and aliens have visited Earth.
2002
1990
1969
1976
1993
1996
2000
1954
1991
2001
2007
2006
1987
1984
1998
1999
