megaparsecs
How Are Galaxies Moving Away Faster Than Light?
So, how can galaxies be traveling faster than the speed of light when nothing can travel faster than light? I’m…
9 years ago
How Fast is the Universe Expanding?
The Universe is expanding, but how quickly is it expanding? How far away is everything getting from everything else? And…
10 years ago
How Do We Measure Distance in the Universe?
This star is X light-years away, that galaxy is X million light-years away. That beginning the Universe is X billion…
10 years ago