Filmmaker Bertie Gregory's new documentary special captures the extreme challenges facing the world's fastest land animal.

The National Geographic Endurance is a comfortable base for explorations in icy waters, whether in the Arctic or in the ...

The U.S. Surgeon General has called for adding cancer warnings to alcohol labels—as scientific evidence mounts that even moderate drinking may be more harmful than we thought. A glass of red wine a ...

For much of prehistory, Southeast Asia was not a scattering of islands separated by shallow seas. It was a single, immense landmass—low, fertile, and threaded with rivers—stretching from the Asian ...

Stirrups, Pap smears, prenatal checks: At her busy office at Duke Women’s Health in Durham, NC, OB-GYN Anne Ford’s work with female patients of all ages usually takes place from the waist down. But ...

A sperm whale floats amid shards of polar pack ice, dead and decomposing, mouth hanging open. When photographer Roie Galitz captured the scene with a drone, the image was so arresting that it took a ...

The Dark Forest theory is one proposed solution to the famed Fermi Paradox, which has bewitched astronomers for more than half a century. To put it concisely, the paradox asks if the cosmos is nearly ...

The race is on to harness the near-infinite power of nuclear fusion—by building a star on Earth. And scientists are closer than you might think. Nuclear fusion in the sun occurs when hydrogen is ...