What Happens to Time at the Speed of Light? | Einstein’s Relativity & Time Dilation Explained

What really happens to time at the speed of light? In this video, we explore time dilation, why time appears to slow down as you approach the speed of light, and what Einstein’s special relativity really says about space and time. From Ole Roemer’s first measurement of light speed to the Michelson–Morley experiment and Einstein’s shocking idea that time and space must bend to protect the speed of light, we follow the story all the way to the perspective of a photon, where the journey from the Sun to your eyes takes no time at all. If you’re curious about why we can never reach light speed, “infinite mass,” and why the speed of light is the key that locks us into the flow of time, this video is for you.