How do we know what's real? Can science tell us, or is there an unseen reality we'll never understand? We explore the borderlands of knowledge and reflect on some remarkable episodes in the history of science - Nobel laureates who investigated ghosts and a pioneer of quantum physics...Read more





Scientists are launching one of the most audacious projects ever conceived: a detailed map of the human brain, neuron by neron, synapse by synapse. For some scientists...