Focus magazine

"What time zone do they use on the International Space Station?" and "What's the world's toughest animal?" BBC Click Radio presenter Gareth Mitchell answers life's big questions.

Matt Kaplan delves into the spooky science of vampires and zombies; Sam Parnia explains how doctors are bringing people back from the dead

Rita Carter discusses the possibilities of brain uploading; Kevin Fong explains why some people can hold their breath for over 10 minutes

"Why does it feel strange to walk up a non-working escalator?" and "Can computers create random numbers?" BBC Click Radio presenter Gareth Mitchell answers life's big questions.

Hugh Aldersey-Williams tells us what it's like to come face to face with a dead body; Prof Bill McGuire explains why Italy’s Mount Vesuvius is deadlier than ever.

"Why doesn't software open instantly?" and "What is snot?" BBC Click Radio presenter Gareth Mitchell answers life's big questions.

Zoologist Prof Matthew Cobb reveals the secrets behind Brian Cox’s new series Wonders of Life; palaeontologist Prof Neil Shubin explores the deep connections between the cosmos and the human body

"What health risks have been linked to Wi-Fi?" and "If everyone stood together what area would we cover?" BBC Click Radio presenter Gareth Mitchell answers life's big questions.

"Why are solar eclipses rarer than lunar eclipses?" and "Is green tea better for you than breakfast tea?" BBC Click Radio presenter Gareth Mitchell answers life's big questions..

Scientist and author Jared Diamond talks about his new book The World Until Yesterday; astrophysicist Caleb Scharf discusses the weird and wonderful world of black holes

"How does my mobile 'know' I'm abroad?" and "What causes hair to turn grey?" BBC Click Radio presenter Gareth Mitchell answers life's big questions.

Astronomer Royal Sir Martin Rees talks about the future of the human race; physicist and author Sean Carroll describes his new book about the Higgs boson.

"How powerful is a great white shark's jaw?" and "How would fizzy drinks behave in space?" BBC Click Radio presenter Gareth Mitchell answers life's big questions.

Britain's only astronaut Tim Peake explains why he's spent most of his year underwater; Oliver Sacks talks about the neuropsychology of hallucinations.

"Does a full e-book weigh more than an empty one?" and "What proportion of swimming pool water is wee?" BBC Click radio presenter Gareth Mitchell answers life's big questions.