After receiving a heart transplant, a patient undergoes an uncanny transformation and assumes the personality of his donor. Do human organs store memory and our very ‘essence’? Across the planet, perfect circles of ice are appearing in lakes and rive... (more)rs, some so big they’re even visible from space. Can the amazing phenomenon be explained? And, a Philadelphia mum undergoes a routine DNA test that reveals she’s somehow genetically unrelated to her four children. How is that possible?