Watch a white blood cell actively searching for bacteria or viruses under the microscope.

ST. LOUIS -- Even as scientists were confirming that the West Nile virus had reached St. Louis, researchers here already have been trying to pinpoint why the mosquito-transmitted form of encephalitis ...

When you buy through links on our articles, Future and its syndication partners may earn a commission. Credit: Sean Anthony Eddy via Getty Images A microscope’s job is to magnify the minuscule world ...

These 10 incredible things can be easily observed at home, in the lab or in the classroom. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. A ...