Galaxies are vast systems composed of stars, gas, dust, and dark matter, held together by gravity. They play a crucial role in the structure of the universe, serving as the building blocks of cosmic organization and evolution. Recent discussions highlight the diversity of galaxies, emphasizing their intricate makeup and the variety of stars within them.
“But the key word in that sentence is appear. The galaxies themselves are not actually moving. It's the space between them that's doing something.”
“yes, at large enough distances, galaxies will naturally look like they are moving away from us faster than light. Not because they're breaking the laws of physics.”