Kip Thorne
(Self - California Institute of Technology),
Jim Al-Khalili
(Self - Presenter),
Joseph Giaime
(Self - Head, LIGO Livingston),
Marek Kukula
(Self - Royal Observatory, Greenwich),
Chris Hadfield
(Self - Canadian Space Agency),
Simon Rea
(Self - Sport Scientist, The Open University),
Vicki Smith
(Self - NERC Space Geodesy Facility),
Graham Appleby
(Self - NERC Space Geodesy Facility),
Sheila Rowan
(Self - University of Glasgow)