Have you ever wondered if we might all be stuck in a matrix-type reality? What would it feel like (or if we would even know!) if our universe were a meticulously prepared program created just for us ...

Do We Live In a Simulation? Gauging whether or not we dwell inside someone else’s computer may come down to advanced AI ...

Geophysicists have modeled how Earth’s magnetic field could form even when its core was fully liquid. By removing the effects ...

Thousands of people online have recounted visiting a similar mall-like setting while they sleep. Theories vary wildly.

The American sci-fi novelist Ken Liu talks about his new thriller All That We See or Seem and the blurred lines between technology, reality, and imagination.

Every day, your brain makes thousands of decisions under uncertainty. Most of the time, you guess right. When you don't, you ...

Uncertainty about where we find ourselves in political time—“back to the future,” back to the GOP of 1989, or back to Germany in the mid-1930s—goes beyond what any fact checking could resolve.

October 16, 2025 • As U.S. health insurance costs rise, some companies are paying for all of their workers' premiums. It's a big expense — but they say it pays off.