Active Galaxies Were First Discovered by Observations in the _______________

Q28: Quasars are caused by galaxy collisions in

Q29: Ultraluminous radio sources associated with small visible-light

Q30: Seyfert galaxies appear similar to normal spirals

Q31: When they were first discovered, quasars appeared

Q34: A supermassive black hole that is erupting_.<br>A)

Q35: Many galaxies with erupting black holes are

Q36: The broad emission lines of Seyfert galaxies

Q37: What is the best description of Hanny's

Q38: Quasars are radio sources that look like

Q65: The luminosity of a Seyfert galaxy varies