Avi Loeb, About The Author S, Avi Loeb Is Former Chair, Of The Astronomy Department At Harvard University, Founding Director Of Harvard'S Black Hole Initiative, Director Of The Institute For Theory, Computation At The Harvard-Smithsonian Center For Astrophysics. He Also Chairs The Board On Physics, Astronomy Of The National Academies, The Advisory Board For The Breakthrough Starshot Project, Is A Member Of
summary
Some are blasted out of galaxies by interactions with black holes; others, which orbit supermassive black holes, can smash together in titanic explosions
