Professor Jim Al-Khalili investigates what the universe would look like if it were a billion times smaller or a billion times bigger.
Andrew Smith
Director
Tim Usborne
Jim Al-Khalili
Self - Presenter
Alexia Lopez
Self - Cosmology PhD Student
Jen Gupta
Self - Astrophysicist, University of Portsmouth
Georgina Benn
Self - London Centre for Nanotechnology, UCL