How to 3D print a dinosaur

Scientists at the Smithsonian Museum of Natural History are preserving its archives in digital format, making it possible for anyone to 3D print its artifacts.

Science solves seashell material mystery

Scientists have long been puzzled by a process that is crucial to much of the life in Earth’s oceans: Why does calcium carbonate, the tough material of seashells and corals, sometimes take the form of calcite, and at other times form a chemically identical form of the mineral called aragonite?

Light photographed as particle and wave for the first time

Quantum mechanics tells us that light can behave simultaneously as a particle or a wave. However, there has never been an experiment able to capture both natures of light at the same time; the closest we have come is seeing either wave or particle, but always at different times. Taking a radically different experimental approach, […]