Approximately 145 million: That's the number of specimens—including plants, animals, minerals, and human artifacts—curators estimate are held in the Smithsonian National Museum of Natural History.

Approximately 148 million: That’s the number of specimens – including plants, animals, minerals and human artifacts – curators estimate are held in the Smithsonian National Museum of Natural History.

Red dye fills the tiny blood vessels of this tongue tissue. The large, roundish structure in the center of image is a projection on the surface of the tongue known as a fungiform papilla. These ...

The humble glass microscope slide may be primed for a makeover. A study published online May 2 in the journal Nature Communications describes how an updated version of this centuries-old tool can now ...

The Museum has around 2.5 million microscope slides in its collections, which are either vertically or horizontally stored. The Digital Collections Programme has developed a slide digitisation ...

A new study describes how an updated version of the microscope slide can enable scientists to see tiny objects while also measuring their temperature. The advancement, made possible by a new ...