Earth is full of mysteries that scientists have yet to fully understand. Despite years of research, some phenomena remain ...

Another of the seven unsolved math problems in the Millennium Prize Problems selected by the Clay Mathematics Institute is ...

with special emphasis on currently unsolved problems. It covers every stage in the life of a star, from birth to death, as well as the fundamental processes that affect stellar evolution. Each chapter ...

The ability to admit ignorance could be a sign of truly intelligent AI, and a new quiz of unsolved or perhaps even unsolvable ...

Scientists are tapping powerful AI to predict how proteins interact — a tall order even for AI — in the stubborn, fascinating ...