ASTROPHYSICAL BLACK HOLES ARE SOME OF THE MOST INTERESTING OBJECTS IN THE UNIVERSE. PREDICTED BY GENERAL RELATIVITY BEFORE THEIR DISCOVERY THEY REPRESENT THE ULTIMATE TEST OF PHYSICS IN STRONG GRAVITY. SUPERMASSIVE BLACK HOLES IN ACTIVE GALACTIC
$530,852FY2021National Aeronautics and Space AdministrationNASA
California Institute Of Technology, Pasadena CA