A universe that continually expands has long been the dominant cosmological framework. But a universe that undergoes cycles of expansion and contraction, perhaps for all time, has recently been analyzed …

Nearly every group has its extreme outliers. Where does fundamentalism come from? How does the most powerful organ in the known universe, the human brain, make emotionally driven decisions that …

MIT physicist Daniel Harlow joins Brian Greene to explore black holes, holography, and the surprising connection between spacetime and algorithms that perform quantum error correction. This program is part of …

Nobel Laureate and physicist Adam Riess and Brian Greene discuss the paradigm-shattering discovery that the expansion of the universe is accelerating, the role of dark energy, and more. This program …

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?

For decades, inflation has been the dominant cosmological scenario, but recently the theory has been subject to competition and critique. Two renowned pioneers of inflation — Alan Guth and Andrei …