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 ...

Discover simple fixes for common Mac issues. Learn how to troubleshoot top MacBook problems, improve performance, battery life, Wi‑Fi, storage, and keep your Mac running smoothly. Pixabay, Pexels Mac ...

One idle evening last October, Mehtaab Sawhney took up an old pastime. He began perusing the website erdosproblems.com, an updated record of the 1,179 conjectures left behind by the eccentric and ...

What are the most pressing global crises in 2026? Each year, the International Rescue Committee’s (IRC) Emergency Watchlist identifies the countries at greatest risk of new or worsening humanitarian ...

Five years ago, mathematicians Dawei Chen and Quentin Gendron were trying to untangle a difficult area of algebraic geometry involving differentials, elements of calculus used to measure distance ...

Microsoft’s MSFT-0.46%decrease; red down pointing triangle Copilot chatbot has become central to its artificial-intelligence strategy as the company’s close partnership with OpenAI diminishes. But the ...

Amateur mathematicians are using artificial intelligence chatbots to solve long-standing problems, in a move that has taken professionals by surprise. While the problems in question aren’t the most ...

Consumer Reports’ latest annual survey flags the most unreliable PHEVs across multiple segments, including the Mazda CX-90 and Jeep Wrangler 4xe. A plug-in hybrid vehicle (PHEV) offers several ...

Bluetooth is a technology for short-range data transmission that has become so ubiquitous in recent years that we can no longer imagine life without it. This makes it all the more annoying when ...

Cognitive struggles are climbing across the U.S., especially among young and economically disadvantaged adults. Rates of self-reported cognitive disability nearly doubled in people under 40 between ...

First released more than 15 years ago, Amazon Kindle e-readers have improved with every generation, adding improved displays, features like wireless charging, the ability to take notes, and so much ...