★ 4.5
★ 5.5
★ 6.7
★ 0.0
★ 8.2
★ 8.0
★ 6.8
★ 6.1
★ 7.0
★ 6.0
★ 6.5
★ 4.4
★ 8.1
★ 9.0
★ 7.7
★ 7.2
★ 6.2
Professor Jim Al-Khalili investigates the amazing science of gravity. As well sculpting our universe, gravity also affects our weight, height and even the rate at which we age.