Stanford chemists have developed a new way to make transistors out of carbon nanoribbons. The devices could someday be integrated into high-performance computer chips to increase their speed and generate less heat.

Archaeologists have revealed new radiocarbon dates of human cremation burials at Stonehenge, which indicate that the monument was used as a cemetery from its inception just after 3000 B.C. until well after the large stones went up around 2500 B.C.

Researchers have simulated in the lab the process that can turn ordinary volcanic eruptions into so-called “supervolcanoes,” with potentially devastating worldwide impact.

Scientists have discovered what may be ice that was exposed when soil was blown away as NASA's Phoenix spacecraft landed on Mars last Sunday