Astronomers and computer scientists recently made history by accomplishing what was previously thought to be impossible: They captured an image of a black hole’s silhouette. Carrie Fitzgerald, professor of astronomy and director of the Montgomery College Astronomical Observatory, explains the nature of black holes by delving into the major ideas of relativity and the fundamentals of gravity.

From spacetime to time dilation, travel through a cosmic journey to the center of a black hole. Learn how scientists test the predictions of general relativity and about the latest research into gravitational waves. Fitzgerald also explores the threshold between science and science fiction with a brief look at hyperspace, wormholes, and warpdrive.