January 22, 2022

Science

The world of science and technology

How Many Galaxies In The Observable Universe Are Moving Away From Us Faster Than Light?

How Many Galaxies In The Observable Universe Are Moving Away From Us Faster Than Light?

Solution to the physics puzzle I posed in the last video. Check out the original video here https://youtu.be/cadNZJvfl7s

I asked you if you could work out what proportion of the galaxies in the visible universe are travelling away from us faster than the speed of light. Here is how I did the calculation and reached the 97% number.

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