With a tool often used in the study of dinosaur fossils, scientists uncovered new details in ornate tattoos on the skin of members of the Chancay culture of Peru. Read more ...
The company, started by the Amazon founder Jeff Bezos, reset its countdown clock repeatedly over a period of just over two hours before eventually postponing the test flight to another day. Read more ...
Scientists have identified a gene that causes production of a substance in some citrus that interferes with many medications. Read more ...