For a long time, astronomers insisted the smaller galaxy’s red shift indicated it was too far behind the larger galaxy for there to be any interaction whatever. I continued believing my lyin’ eyes, and today the connection is affirmed.
Are you referencing Dr. Halton Arp?
He had a group of “peculiar” galaxies published back in the 1960’s. He listed many galaxies interacting and some “linked” with far distant quasars, From there he denied the Big Bang and cosmological redshift.
What does the mainstream say about his work now?