Machines: How They Work

Michael Mosley takes an in-depth look at blood. He carries out six experiments on his own blood, from starving it of oxygen to injecting it with snake venom and even eating it.

Reveals worlds never seen before; stunning CGI animation peels back the layers, revealing alien landscapes of fragile lava caves, roiling plasma seas, cosmic platinum mines, and the hungry black hole at the center of our galaxy – cosmological wonders that play a surprising role defining our place in the universe.

A natural history portrait of a year in Yellowstone, following the fortunes of America's wildlife icons as they face the challenges of one of the most extraordinary wildernesses on Earth.

This new series follows International teams of archaeologists on the front line, as they embark on a season of excavations to unravel the secrets of life in the Roman Empire. Crawling beneath Pompeii, unearthing an enormous lost coliseum, and hauling a 2000 year old battleship ram from the depths of the ocean, they race to unlock the secrets of this ancient civilization.

A look at relevant scientific issues

Author Helen Macdonald follows Britain’s greatest river over four seasons, encountering salmon, beavers and the microscopic creatures helping to answer science's biggest questions.

Narrated by Michael Palin, this fascinating series follows the incredible lives of trees - from their beginning as tiny seeds through to magnificent giants and into old age, revealing the secrets of how they communicate, how they drink and even how some of the three trillion trees on our planet are as old as the pyramids.

Some of the most iconic and historic buildings of the ancient and medieval worlds are examined by 'blow apart' CGI animation to reveal how these structures were built. Using the latest archaeological investigations combined with X-Ray and LiDar scanning technologies, the series delves into the myths and mysteries behind ancient civilizations and the structures they built.

Dr Alice Roberts follows a year of British archaeology, joining up the results of digs and investigations the length of the country.