NASA data revealed the most basic ingredients of life in bursts from an ocean on Saturn's moon...

A lack of understanding between American and Middle-Eastern culture is a national security...

NASA seeks to prevent interplanetary contamination when exploring space. But some scientists argue we should be infecting Mars with Earth's...

A study from the NutriRECS group published in the Annals of Internal Medicine urged adults to keep eating red meat. Doctors are now pushing...

Destruction of the forests can be swift. In a corner of the Peruvian Amazon, where illegal gold mining has scarred forests and poisoned ground, scientists work to change wasteland back to wilderness. More than 3,000 miles to the north, on former coal mining land across Appalachia, workers rip out old trees that never put down deep roots and make the soil more suitable to regrow native tree...

Neuromodulation isn't used very often, because it can be costly and require surgery. Plus, it can only treat some types of...

The number of young people in South Africa receiving treatment for HIV has increased 10-fold within a decade, a major new study has found. AIDS deaths have declined globally since the peak of the epidemic in the early 2000s, but an international AIDS commission warned last year of a resurgence if the world's booming adolescent population weren't...