Is Time Travel Possible? Stephen Hawking explores the world's favourite scientific 'what if?' He explores all the possibilities, warping the very fabric of time and space as he goes. From killing your grandfather to riding a black hole, we learn the pitfalls and the prospects for a technology that could quite literally, change everything.

The untold story of the doomed steamship's construction, revealing how 15,000 men toiled day and night in life-threatening conditions to create a state-of-the-art floating city. Based on original blueprints and unseen archives, cutting-edge special effects bring this process back to life on screen, and explore how the outsize ambitions that made it all possible also led to the ship's dramatic demise.

The true story of physicist J. Robert Oppenheimer's journey from driven and ambitious scientist to remorseful and tormented man struck hard by the gravity of what he had done. For Oppenheimer, the successful detonation of the first atom bomb validates years of tireless work. But in this moment of seeming triumph, Oppenheimer sees before him a destructive power of almost supernatural magnitude.
The films explores how one man's brilliance, hubris and relentless drive changed the nature of war forever.

We’re going back to the moon. Plans are being made, hardware is being designed, built, and tested to return humans to the moon and beyond in a new era of American space exploration. This episode explores how we did it in the past, and how and why we will do it again. The moon is critical to future explorations: it will be where we learn to build sustainable colonies on other worlds.

Take a look back at many of the most fascinating science stories of 2017, a year full of stunning advancements in individual fields of study, from astronomy to biology, geology to history – when we piece these discoveries together we see the year in a new light.

2020 has been an unprecedented year in science. From a global pandemic and race to find a cure, to exploring our planetary neighbours and our own world, stay in the know with the latest stories that defined this tumultuous year. 365 days marked by stark warnings about the planet's future and technological triumphs. During this journey around the sun, science continued to reveal stories of our past and also provide promise that we can overcome the obstacles in way some far ahead and others more immediate.