Transcript

Let’s turn to the challenge of understanding time. In the past, we thought that time ticked at the same rate wherever you were in the universe. But Einstein’s great breakthroughs revealed that time is much more fluid. Clocks beat at different rates according to how we are moving relative to each other. Gravity affects the ticking of a clock. Indeed, you’ll find out what happens to a clock as it approaches the extreme gravity of a black hole.