Three thought experiments involving “demons” have haunted physics for centuries. What should we make of them today?

Einstein’s brain wasn’t larger — it was built differently. The region responsible for spatial reasoning was wider than normal ...

Edison was sold on the one simple trick of falling into N1, the short, half-conscious sleep stage that marks the transition ...

P ITY THE young, for the world is run by old men. President Donald Trump (79) and China’s ruler, Xi Jinping (72), talk a good ...

Following the release of Stranger Things season 5, Volume 1, here are of the biggest theories we're thinking about ahead of ...

Ezra Klein answers your questions on the year’s political lessons, the struggles of young men and handling heat on the show.

Campbell, who was 57, died on Monday, Dec. 1 "due to drowning," Thomas Steinkamp, the chief of investigative services for ...

Elden Campbell died after suffering a medical emergency while fishing in Florida, according to a family member. Campbell’s ...