The president escalated his drive to take charge of the Danish territory, targeting Denmark and seven other European countries with a 10 percent rate. By Shawn McCreeshAna Swanson and Jeanna Smialek G ...

Dec. 27, 2025 Stanford scientists have uncovered how mRNA COVID-19 vaccines can very rarely trigger heart inflammation in young men — and how that risk might be reduced. They found that the vaccines ...

Jan. 18, 2026 A long-running Swedish study has followed adults for nearly five decades, uncovering when physical decline truly begins. Fitness and strength start slipping around age 35, then worsen ...

January 17, 2026 • Thousands of people rallied in Copenhagen to push back on President Trump's rhetoric that the U.S. should acquire Greenland. January 17, 2026 • The Administration for a Healthy ...

Planet or Plastic? is National Geographic’s multiyear effort to raise awareness about the global plastic trash crisis. Come to this page often to learn more, and find out what you can do to reduce ...

Graphene is a two-dimensional material consisting of a single layer of carbon atoms arranged in a honeycomb structure. Its properties include high strength and good conductivity of heat and ...

January 17, 2026 • A trial was about to launch for a vaccine that would ward off the HIV virus. It would be an incredible breakthrough. Then it looked as if it would be over before it started.