Celebrity guests Katy Brand, Josie Long and Tim Key try to spot bogus news stories.

Professor Brian Cox looks at the rings of Saturn, formed from a chaotic cloud of gas.

Jeremy, Richard and James find themselves entered in a terrifying French ice race.

Three hopefuls who want to learn the craft of stonemasonry are put through their paces.

Professor Brian Cox explores the sun - the powerhouse of our solar system.

Simon Reeve starts his epic journey around the world following the Tropic of Cancer.

Sue Perkins, Marcus Brigstocke and Julia Hartley-Brewer try to spot bogus news stories.

Featuring the Honda Clarity, the Tesla and a look back at 50 years of Touring Car racing.

Matt tries to resist Sylar's mental domination and Tracy struggles to control her ability.

Investigating the discovery of what is ominously being called 'dark flow'.