Our Galaxy Is 100,000 Light-Years Wide 🌌

Added: 2026-05-17

[00:00:00]This spiral contains over 400 billion stars and spins at 490,000 mph, fast enough to circle Earth 20 times in 1 hour. Can you guess what it is?

[00:00:10]Meet the Milky Way, our cosmic home.

[00:00:13]It stretches 100,000 light years across, so wide that light takes longer to cross it than humans have existed on Earth.

[00:00:21]Our solar system orbits the center at 514,000 mph, but it still takes 230 million years to complete one lap.

[00:00:30]The supermassive black hole at its center weighs 4 million times more than our sun and could swallow our entire solar system.

[00:00:37]It's surrounded by dark matter that outweighs all visible stars by 5 to 1.

[00:00:42]Invisible mass holding everything together.

[00:00:44]In 4.5 billion years, it will collide with the Andromeda galaxy at 250,000 mph, creating a new mega galaxy.

[00:00:54]You made it this far.

[00:00:56]Hit follow and drop which fact rewrote your brain the most. Stay tuned for more astounding facts.