We are all familiar with gravity’s effects on Earth, but many of us have yet to learn what gravitational waves mean in the context of the Universe. Dr. Eliu Huerta, head of the Gravity Group at the National Center for Supercomputing Applications (NCSA) at the University of Illinois at Urbana-Champaign, joins us today to answer our simple and complex questions about gravitational wave analysis.    A theoretical astrophysicist by training, Dr. Huerta’s research focuses on developing artificial intelligence that aids scientists in detecting and analyzing gravitational wave observations. These observations provide information about black holes and neutron stars in the Universe. Dr. Huerta explains how we quantify gravitational waves, and answer questions varying in complexity, from “What is gravity?” to “What is gravity in the context of space-time?” Tune in to hear about the previous, current, and future fascinating technologies of astrophysics.    For more information, visit http://gravity.ncsa.illinois.edu/ and http://www.ncsa.illinois.edu/.