Once a thing of nobility and honour, strong, natural noses are undergoing mass renovation with all kinds of surgery. Some men ...

This dual cross-linking design lets the muscle switch stiffness on demand. In lab tests, its stiffness jumps from about 213 kilopascals — soft, like rubber — to 292 megapascals, hundreds of times ...

From left to right - the cell in the initial frame is from a 55-year-old donor heart. The next image shows the cell rounding up after receiving Cyclin A2 and the cell division takes place shortly ...