Astrophysicist Carl Seyfert noticed about one out of six spiral galaxies had a galactic center so bright that it outshined all the other stars in the galaxy.
“Seyfert galaxies: In 1943, Seyfert published a paper about the bright, point-like nuclei of some spiral galaxies, which are now known as Seyfert galaxies. These galaxies have active nuclei, and the…
Keep reading with a 7-day free trial
Subscribe to Love, Death & Demons to keep reading this post and get 7 days of free access to the full post archives.