We spend a third of our lives asleep. Every organism on Earth—from rats to dolphins to fruit flies to microorganisms—relies on sleep for its survival, yet science is still wrestling with a fundamental question: Why does sleep exist?

In his research, U.K. Astronomer Royal Martin Rees has tackled topics as varied as the Big Bang, quasars, and more far-out ideas like the search for dark matter and the …

Join us for #YourDailyEquation with Brian Greene. Every Mon – Fri at 3pm EDT, Brian Greene will offer brief and breezy discussions of pivotal equations. Even if your math is a …

Where do our dreams come from, why do we have them, and what do they mean? Can we harness them to foster creativity, solve problems, and prepare for the future? …

The oceans remain a realm of mystery, with an astonishing 95% still unmapped, but their secrets are starting to be revealed. Journey into the deep to explore exciting discoveries like …

IBM’s Watson has the ability to make a diagnosis. Apps can track and monitor patient emergencies. Our phones may soon be our medical advisers. Preventive and diagnostic medicine is on the cusp of an AI revolution that will no doubt save lives.