We read that spiral galaxies have blackholes at their cores. I don't
hear that elliptical galaxies have blackholes at their cores. I read
that elliptical galaxies are created when two spiral galaxies
collide(come to gether) That means they can have two blackholes
revolving around each other. This could create a very bright core. I
saw a picture of elliptical galaxy NGC 147 and that is how I came up
with this thinking. Bert