Topic2 facts
Discover the universe's ultimate speed limit! The speed of light, a constant 299,792,458 m/s, defines cosmic distances and fundamental physics.
Traveling at the speed of light (299,792,458 meters per second), photons from the Sun embark on a 150-million-kilometer journey across space. This means we always see the Sun as it was 8 minutes ago.
Light travels fastest in a vacuum (about 299,792 kilometers per second). When it passes through denser mediums like water or glass, it interacts with the atoms, causing it to slow down temporarily.
