Tim McCoy (right), the Smithsonian’s National Museum of Natural History curator of meteorites and the co-lead author on the new paper, with Cari Corrigan (left) sein a scanning electron microscopy lab ...

Have you ever wondered what makes shark skin so tough and sleek? It's dermal denticles—tiny, tooth-like structures that cover a shark's skin. Made of the same material as teeth and shaped like small ...

Researchers catalogue the artifacts that arise when biological samples are imaged by optical scanning transmission electron ...

Scanning electron microscope images of trona found in samples of the asteroid Bennu returned by NASA’s OSIRIS-REx mission. Trona is water-bearing sodium carbonate, also known commonly as soda ash.

Electron microscopy is a powerful technique that provides high-resolution images by focusing a beam of electrons to reveal fine structural details in biological and material specimens. 2 Because ...

SEM stands for scanning electron microscope. The SEM is a microscope that uses electrons instead of light to form an image. Since their development in the early 1950s, scanning electron microscopes ...

Unlike optical microscopy, SEM does not rely on light waves but instead uses a beam of electrons to interact with materials, enabling magnifications up to 300,000× and resolutions approaching 1 nm. 1 ...