New research suggests Mars may have remained habitable much longer than scientists once thought. Ancient sand dunes in Gale Crater appear to have been soaked by underground water billions of years ago ...

"At first, I kind of laughed … But they were serious. I could just see the seriousness in their faces." In this book excerpt, Lise Barnéoud explores the limitations of DNA testing. When you purchase ...

A new light-based sensor can spot incredibly tiny amounts of cancer biomarkers in blood, raising the possibility of earlier and simpler cancer detection. The technology merges DNA nanotechnology, ...

They showed their knowledge of biology and coding, geology and machines; they solved crimes, built hovercraft, decrypted encoded messages and classified rocks and bugs. Some 1,200 middle school and ...