Behind closed doors, the world's most powerful AI companies are in a neck-and-neck sprint to create systems that exceed all human cognitive ability. Our investigation reveals the stakes, the risks, and what's being sacrificed in the rush.

From semiconductors to satellites to undersea cables, the battle for technological supremacy is forcing every country to pick a side — and the consequences will define the next century of geopolitics.

A decade-long international project has produced a complete, neuron-level map of the human brain. The discoveries are already overturning centuries of neuroscience — and raising profound questions about consciousness.