Great success !
"Quasars are very far away so they do not move "
When I think about it, the amount of knowledge we have gained in the past forty years on the Universe we live in is amazing.
Forty years ago, we were still wondering if ours was the only solar system with planets. Quasars were an unknown object and black holes were a theory.
Now, we have learned that quasars are just supermassive black holes at the center of a galaxy gorging on stellar gas, pulsars are white dwarfs that rotate real fast, white dwarfs have ginormous magnetic fields, some so powerful they are called magnetars, practically every star has planets, there are neutron stars, etc.
And then there's dark matter and dark energy to figure out.
We've learned so much, and there is so much more to find out.