Michael Mosley

Paul Vaughan

Alice Roberts

Hannah Fry

Richard Feynman

Brian Cox

Giles Yeo

Xand van Tulleken

David Attenborough

Steven Mackintosh

Kevin Fong

Michio Kaku

Kelly Hunter

Helen McCrory

Helen Czerski

Iain Stewart

David Lutyens

Dilly Barlow

Jack Fortune

Richard Branson

Nicholas Soames

Bob Brier

Robert Winston

Robert Gallo

Trevor R. Bryce

Joshua Wurman

Bill Paterson

Lori Schappell

Gary England

Reba Schappell

Andrew Scott

Rupert Penry-Jones

Adrian Lester

Dr Adam Rutherford

Hugo Speer

Gabriel Weston

David Harewood

John Hannah

Peter Gibbs

Adam Pearson

Chris van Tulleken

Daniel Kahneman

Toby Macdonald

Uta Frith

Anne Glover

Dr Zoe Williams

Tim Berners-Lee

Laura Waters

Julian Assange

Robert Smith

John Hammond

Liz Bonnin

Paul McGann

Toby Jones

Danny Wallace

Fergal Keane

Katherine Parkinson

Chris Packham

Murray Gell-Mann

Yuval Ne'eman

Nicholas Samios

Arthur C. Clarke

Frank Gillard

Terrence Hardiman

David Swift

Simon Lack

Richard Ireson

George Cormack

Forbes Collins

Richard Beale

Duncan Geddes

Sean Conroy

Peter Middleton

Buckminster Fuller

Robert Horne

Aaron Klug

John Money

David Reimer

Dilly Barlow

Ben Carson

Zam Baring

Maria Pearson

David Van Horn

Larry Zimmerman

Suzan Harjo

Richard Jantz

Sue Savage-Rumbaugh

Patricia Marks Greenfield

Duane Rumbaugh

Sarah Boyson

Beatrix Gardner

Rayna Green

Ian Holm

Tim Ingold

Paul Martin

David Meltzer

David Harris

Abbot Sekaquaptewa

James Hazeldine

Thomas A. Edison

Michael Swann

Francis Crick

James Watson

Vernon Joyner

John Slack

Christophe Boesch

Sarah Boysen

Frans de Waal

Jane Goodall

Martin Muller

Crickette Sanz

Robert Sussman

Michael Tomasell

Richard Wrangham

Danny Wallace

Frank Borman

Dick Gilling

Rosemary Leach

Lucian Msamati

Bill Paterson

Bernard Hill

Jemma Redgrave

Saul Perlmutter

Alex Filippenko

Robert Kirshner

Rocky Kolb

Michael Turner

Adam Riess

Stephen Hawking