holes in general. About the Experts Ezequiel Treister is an astrophysicist for the Institute for Astronomy at the University of Hawaii at Manoa. He has a doctorate in astronomy from the Universidad de Chile, two masters degrees in astronomy from Yale University and a bachelors in physics, also from Universidad de Chile. His interests include active galactic nuclei -- the compact regions at the centers of galaxies with higher than normal luminosity over the electromagnetic spectrum. He studies these nuclei in relation to the cosmic X-ray and Infrared backgrounds of the universe. Kevin Schawinski is currently an astrophysicist at Yale University in New Haven, Conn. He has a doctorate in astrophysics from the University of Oxford and a bachelors in physics and mathematics from Cornell University. His interests include how galaxies formed and how they co-evolved with the supermassive black holes that lurk at their centers. Chat Transcript Jason (moderator): Hi all. We're beginning to get set up for today's chat which begins at 3 p.m. EDT today in about 20 minutes. In the meantime, please begin to think about your questions and type it in the box at the bottom of the window and click the 'Ask' button on the right side of the box. Jason (moderator): We'll be getting started here in about 10 minutes. Do you have a question you want to ask when we start? To submit your own question, please type it in the box at the bottom of the window and click the 'Ask'