7/15 Adam Rutherford meets a new creature created by American scientists - the spider-goat.
16/18 A look at people living with OCD, the therapy available and what neuroscience can offer.
15/18 Horizon reveals our new findings on the very first Britons.
14/18 Michael Mosley subjects himself to a battery of health tests.
12/12 Physicist Dr Helen Czerski and meteorologist John Hammond make sense of Britain's weather.
13/18 Horizon reveals the scale of the problem of space junk, with accounts from experts.
12/18 Horizon discovers what your cat really gets up to when it leaves the cat flap.
The story of the men who orbited Earth on board the ill-fated Mir space station. (1998)
Examining the US fear that the Russians are ahead of them in the space race. (1981)
The discovery by physicists of a unique particle. (1964)