BBC Horizon

Professor Marcus du Sautoy goes in search of answers to one of science’s greatest mysteries - How do we know who we are? (58 min)

In a series of ground breaking experiments BBC Horizon investigates the truth behind the most controversial diet in history. Does the Atkins diet really work and is it dangerous? (48 min)

The past, present and future is no where near straight forward as you might think. BBC Horizon and Professor Brian Cox is going to find out what makes time tick. Did Time have a beginning? Does our future already exist?… (44 min, 5 segments)

For fifty years, the Search for Extra Terrestrial Intelligence (SETI) has been scanning the galaxy for a message from an alien civilisation. So far to no avail, but a recent breakthrough suggests they may one day succeed. (48 min, 6 segments)

Yep, they say that 96% percent of our universe is missing. This show looks at dark matter, dark energy and variable gravity as possible explanations. Fun stuff. (58 min, 5 segments)

Twenty of the most dangerous drugs, including alcohol and tobacco, have been evaluated and ranked in a new study and presented here by BBC Horizon. (48 min, 5 segments)

The world’s leading scientists are assembled by BBC Horizon to simplify the equation of science for the U.S. president and define the basics he should know when making strategic decisions. (48 min, 5 segments)

BBC Horizon explores time travel from a few different perspectives. (9:12 min)