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Would you like to lose weight without exercise and dieting? Would you like to age just a bit more slowly than your friends? With these provocative questions, Professor Jim Al-Khalili pulls us in to the amazing world of gravity. Gravity is more than what happens when we drop an object: It is a phenomenal force of nature that affects every area of our lives. It shapes our bodies and our planet. Nothing happens on earth without its power and influence. And we are still discovering its secrets. With his engaging and accessible style, Prof. Al-Khalili explores the cutting edge of gravity research, visiting the lab where gravity waves were discovered and being astonished by the latest theories. With footage from historical and recent space flights, he discusses the effects of gravity with astronaut Chris Hadfield and sees what happens when you wring a wet cloth out in space. Since gravity really does have an effect on how fast we age, our weight and our height, he goes in search of the place in Britain where it is the weakest. And if you thought a hammer fell faster than a feather due to its weight, tune in to find out why that is not so.