Is time real, or is it just an illusion? In our latest video, we meet Jim Al-Khalili, physicist and author of On Time, at the Royal Observatory Greenwich, the home of the Prime Meridian, to explore one of the deepest mysteries in science.
From space-time at the heart of Albert Einstein’s theory of relativity to the arrow of time, entropy and the origins of the universe, Al-Khalili explains why physicists remain divided over the true nature of time.
Could the past, present and future all exist at once? And is time travel really possible? Join us for a mind-bending journey through one of physics’ greatest puzzles.