Presented by Professor Jim Al-Khalili, this will be unique 2 part series on the subject of gravity. The show will feature unexpected historical insights, cutting edge science and exciting new experiments involving the participation of viewers. The programme brings fresh perspective into the way Galileo, Newton and Einstein revolutionised science by seeking the truth about gravity. The show also brings the story right up-to-date by investigating the latest discoveries from the physics of gravity. We will see the extra-ordinary LIGO lab in the USA where gravity waves were discovered and describe the latest theories about the nature of our cosmos learned from studying the most intense sources of gravity imaginable – black holes.