This puzzle is known as the problem of time, and it remains one of the most persistent obstacles to a unified theory of ...

Time feels like the most basic feature of reality. Seconds tick, days pass and everything from planetary motion to human memory seems to unfold along a single, irreversible direction. We are born and ...

Juan López started running at 66. Now in his eighties, he continues to amaze physiologists with his record-breaking feats ...

In a 5-round featherweight championship bout in the main event, Alexander Volkanovski and Diego Lopes meet Saturday at UFC ...

Smart leaders know when to seek input and how to use it to make stronger decisions. Here's how founders can bring in outside ...

Compare walking and running for heart health, weight control, joints, and mental wellbeing in India to choose the best option ...

Ten new cars, five days, no fans. And plenty of security. Formula 1 started a new era with the public and the media excluded ...

Polar bears are growing increasingly comfortable around people, and that's a problem. One can see the tension between these ...

NASA's Artemis II is poised for the first lunar mission since 1972—with much more to come.

Justin Gaethje and Paddy Pimblett meet at UFC 324 Saturday in a lightweight championship bout at T-Mobile Arena in Las Vegas, ...

As regional air forces prioritise reach, resilience, and sovereignty of sustainment, the A400M and A330 MRTT are emerging as critical enablers . The A400M and MRTT in Middle East operations . A400M ...

In a 3-round bantamweight bout on the main card, Sean O'Malley and Song Yadong meet Saturday at UFC 324 at T-Mobile Arena in ...