Led by a pioneer in the science world, Stephen Hawking, this special takes us on a journey which delves into the subjects of stem cells both embryonic and adult to explore what these wondrou... Read allLed by a pioneer in the science world, Stephen Hawking, this special takes us on a journey which delves into the subjects of stem cells both embryonic and adult to explore what these wondrous and baffling mechanisms are capable of, what exactly stem cells are and if they are the ... Read allLed by a pioneer in the science world, Stephen Hawking, this special takes us on a journey which delves into the subjects of stem cells both embryonic and adult to explore what these wondrous and baffling mechanisms are capable of, what exactly stem cells are and if they are the key to our future or a ticking time bomb waiting to detonate?