Time travel is one of the most fascinating ideas in science. The ability to go back, change events, or see the future sounds almost limitless. But the moment you actually think about it… things start ...

Groundwater is responsible for about half of the water people use globally. It's drying up. Hayes Kelman started noticing the family farm in western Kansas was slowly getting less water around the ...

Humans tried to solve it — and kept getting it wrong. Dogs didn’t hesitate, didn’t overthink, didn’t complicate it. They saw the answer immediately and acted on instinct. What took us time and effort… ...

Quantum computers are already here, but they make far too many errors. This is arguably the biggest obstacle to the technology really becoming useful, but recent breakthroughs suggest a solution may ...

Some readers may solve the problem procedurally: line up the two numbers, add the ones column, carry the one, and add the tens to get 43. Others might instead notice a creative shortcut: 29 + 14 is ...

When Iranians took to the streets to celebrate the death of Ayatollah Ali Khamenei on February 28, it was tempting to think that the hardest part of the current confrontation with Iran was over. Iran ...

In a dark room, in the middle of the night, a woman lies dreaming. Suddenly, her eyes beneath their lids dart crisply left-right, left-right. The eye signal means she knows she’s dreaming. Lucid ...

Over the past couple of years, we have seen an increased push for age verification across a number of applications and online platforms. The push has been so concentrated in some states that thousands ...

This voice experience is generated by AI. Learn more. This voice experience is generated by AI. Learn more. This psychology-based problem-solving quiz reveals whether you solve problems through ...