How to Build a Time Machine (S55E03)

Time travel may not be ruled out by the laws of nature, but creating a time machine requires a deeper understanding of those laws and how to bend them than we currently possess. Fortunately, science is making strides every day. In this film, Horizon explores the groundbreaking work of scientists who are on the verge of major breakthroughs—individuals who might unlock the secrets of wormholes, manipulate entangled photons, or even create fully operational time crystals. These innovations could pave the way for future engineers to turn what was once mere fantasy into reality: a device that allows time travel at the press of a button. Could it be you? Stay tuned!