A small study suggests emotional fit, not perfect accuracy, may make chatbot versions of dead loved ones feel real.

Emerging research suggests overusing digital devices can be harmful, especially to mental health. But does being overly online truly rot our brains?

The result is correct but challenges core norms of mathematics: checking proofs, crediting ideas and keeping research open to everyone.

Scientists rethink their ideas after experiments. AI agents struggle to learn from evidence and recognize when an idea is obviously incorrect.