- #1
Thecla
- 135
- 10
I read that in 1900 astronomers thought that our own Milky Way Galaxy was the only galaxy in the whole universe. This puzzles me because I presume they knew about the pinwheel structure of our galaxy and there were telescopes back in 1900( Yerkes for instance)which were large enough that could see the pinwheel structure of Messier objects and even more distant galaxies.