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.
1974
2007
1998
1966
1981
1965
2004
1995
2003
2005
1986
2006
1993
1969
