From booed hydration breaks to cooling-gel vests, teams are trying everything to keep their players from overheating. Physiologists—and one World Cup team doctor—say feeling cooler is different than cooling the body

A new study captures how cork, wine and air interact over time

Astronomers may have found the remains of two long-dead stellar siblings

This operation opens the door to treating more people living with HIV who have end-stage organ disease

A new method that detects whether bones have been burned reveals Homo erectus brought fires into caves far earlier than previous evidence had suggested

The James Webb Space Telescope has found nearby brown dwarfs masquerading as far-distant galaxies. The discovery reinforces how, in astronomy, what you see isn’t always what you get

The quest to approximate irrational numbers with fractions reveals hidden patterns, surprising hierarchies and enduring mathematical mysteries

Everyday viral infections may be quietly reshaping the body’s network of molecules that support cells and tissues in ways that can raise cancer risk over time