Get up close and personal with some of the creepiest creatures on earth - snakes. Host Danny Trejo and experts provide insight on home videos and real snake encounters, in this nail-biting one-hour special!

NASA's James Webb Telescope is the next step in humankind's ongoing mission to see farther into the universe and answer fundamental questions that have ignited human curiosity from the beginning of time.

Discovery marks the centenary of the defining moment in World War One with a special one-off documentary, hosted by actor and historian Sir Tony Robinson, which poignantly examines the first day of one of the bloodiest battles in human history. This one-off special tells the powerful and moving story of five men, all members of a unique volunteer army – the Sheffield City battalion – as it recounts the soldiers’ last days, leaving their homes and loved ones to go and serve alongside their friends and neighbours, completely unaware of what lay ahead of them. Central to the programme is the story of Private Frank Meakin, who recorded his unique personal testimony of the war. Frank and his friends could never have anticipated what they would experience, but 100 years on we know in detail, thanks to his diary – an account that shouldn’t have existed, because keeping one was forbidden for servicemen on active duty on the Western Front. Frank’s diary, which was smuggled back from the Front, reveals the intimate details and dramatic stories of one battalion – and one British city – in the words of one man.

The drought in the American West is predicted to be the worst in 1,000 years. Join five Academy Award-winning filmmakers as they explore the environmental crisis of our time and how to fix it before it’s too late.

Scientists and engineers who built the world's largest solar telescope and launched the first solar probe into space help predict and prepare the planet for solar storms.