How much does the Earth’s atmosphere weigh? Are chin dimples hereditary? Why do some people love horror films? These questions and more answered by experts.
DR HELEN SCALES Oceans expert, science writer
PROF ALICE GREGORY Psychologist, sleep expert
ALEX FRANKLINCHEUNG Environment/ climate expert
DR PETER J BENTLEY Computer scientist, author
CHARLOTTE CORNEY Zoo director, conservationist
DR AARATHI PRASAD Biologist, geneticist
LUIS VILLAZON Science/ tech writer
PROF ROBERT MATTHEWS Physicist, science writer
DR ALASTAIR GUNN Astronomer, astrophysicist
PROF MARK LORCH Chemist, science writer
EMMA DAVIES Heath expert, science writer
DR CHRISTIAN JARRETT Neuroscientist, science writer