We have always wondered about unusual powers of the mind - ESP, or extrasensory perception. Some people do seem to be able to guess things they couldn't possibly know. Nearly five centuries ago, a French doctor named Nostradamus claimed he could foretell the future. Modern astrologers offer to tell our fortunes for a price. Uri Geller has captured audiences all over the world with his spoon-bending act. And the CIA has tried to train people to visit distant places - with their minds. Could these powers be real? Is ESP a super sense or just nonsense?