As space agencies prepare for human missions to the moon and Mars, scientists need to understand how the absence of gravity ...

We’ll understand if you’re puzzled by the eerie image below. It’s a tiny piece of the Lassa virus, which can double a person over in pain, make their head swell and, in some cases, quickly result in ...

To get a better look at brains, Harvard researchers are making microscopes work more like human eyes. Until recently, the quest to build high-resolution maps of brains — otherwise known as ...

Caption: Human neutrophils visualized under a confocal microscope with cell membranes stained red and nuclei blue. When faced ...

It’s relatively easy to understand how optical microscopes work at low magnifications: one lens magnifies an image, the next magnifies the already-magnified image, and so on until it reaches the eye ...

Human cancer under a microscope. The black dots on the right of the image are lymphocytes which are trying to get at the tumor, but are being stopped by cancer-associated fibroblasts. Disclaimer: AAAS ...