Albert Einstein? Marie Curie? Carl Sagan?
Who is your favourite scientist?
That's the question film-maker Brady Haran has posed to leading researchers at Nottingham Trent University.
The answers may be surprising, with an assortment of men and women from the past and present.
They range from household names to unsung heroes.
We'd also like to hear about some of your favourite scientists, so please get in touch by email.
And to find out more about Nottingham Trent University, visit the website.
More links and useful information can be found here.
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