💡🌌 Light Has No Mass… So Why Is Its Speed Limited? | SLEEP SCIENCE STORIES
Light is massless, yet it travels at a fixed speed—299,792 km per second. But why can’t it go any faster? In this sleep science story, we’ll unravel one of physics’ greatest mysteries: why the universe has set a cosmic speed limit, even for something as weightless as light.
In this calming yet mind-bending journey, you’ll discover:
✨ How Einstein’s theory of relativity explains the speed of light
⚛️ Why light’s masslessness doesn’t mean infinite speed
🌌 How spacetime itself enforces this universal law
💫 What it means for time, causality, and the limits of the cosmos
Perfect for relaxing, unwinding, and drifting off to sleep, this story blends soothing narration with profound science, letting your mind travel at the speed of imagination.
#SleepScienceStories #SpeedOfLight #Cosmos








Anchorage AK. 8;50 p.m.
USA 8:30am
South Australia exactly 3am. I’m supposed to be right here, lying on my couch, my lover sweaty and unconscious on top of me and watching this video while they softly snore.
very good explanation of things
usa kentucky 2;45
It has not been established that light has no mass. It is immeasurable. But whether or not, the speed limit causex by the permiability and permitivity of free space. They provide the spring and equivalent of jazz that the wave resonates with.
One of the most enlightening presentations of the complex subject of the speed of light. I am very grateful to the presenter for educating non-physicists on this subject.
Why does light bend and lense around galaxies if it has no mass?
I am an Architect in Richmond, Virginia, USA, and heard it in the afternoon. I look forward to finding more videos from the presenter.
From Slovenia. 23:00