News

Anthropology

Scans tell gripping tale of possible ancient tool use

South African fossils contain inner signs of humanlike hands, indicating possible tool use nearly 3 million years ago.

Planetary Science

Rosetta reveals a complex comet

Rosetta finds diverse landscapes on comet 67P, which could provide researchers with clues about how the solar system formed.

Genetics

Scientists find new way to corral genetically engineered bacteria

Engineering E. coli to depend on human-made molecules may keep genetically modified bacteria from escaping into nature.

Neuroscience

Brain’s protective barrier gets leakier with age

Aging influences the breakdown of the blood-brain barrier, which may contribute to learning and memory problems later in life.