Australia and Paraguay face a World Cup Group D coordination problem where a draw may be the safest path to knockout ...

US actions are testing global limits. Iran deal, Indian sailor deaths, G7 summit divisions and tech export bans are among the ...

“If you are a mathematician,” one of the world’s leading mathematicians recently wrote, “you may want to make sure you are sitting down before reading further.” And you’ll definitely need to sit down ...

OpenAI claims its new reasoning model has produced an original mathematical proof disproving a famous unsolved conjecture in geometry, which was first posed by Paul Erdős in 1946. If this sounds ...

This video presents a series of challenging riddles designed to test logic, attention to detail, and critical thinking skills. Each puzzle encourages viewers to pause and analyze before jumping to ...

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We will never know how many died during the Butlerian Jihad. Was it millions? Billions? Trillions, perhaps? It was a fantastic rage, a great revolt that spread like wildfire, consuming everything in ...

Three new books apply an economist’s lens — and language — to some of our most unruly phenomena, including war and nature itself. By Nick Summers Nick Summers is the former Sunday Business editor at ...

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 ...

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 ...

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-0.12%decrease; down pointing triangle Copilot chatbot has become central to its artificial-intelligence strategy as the company’s close partnership with OpenAI diminishes. But the ...