See more of our trusted coverage when you search. Prefer Newsweek on Google to see more of our trusted coverage when you search. How many bacteria live on a subway seat? What about on your wallet? In ...

Have you ever wondered why most disinfectants indicate they kill 99.9% or 99.99% of germs, but never promise to wipe out all of them? Perhaps the thought has crossed your mind mid-way through cleaning ...

In this episode, learn how to make Elephant toothpaste. However, this is not something you will want to use on your own teeth. Learn what common chemicals can be put together to cause a reaction.

Since the outbreak of COVID-19, surfaces in public spaces are cleaned more often. While disinfectant solutions eliminate germs, they don't leave behind a truly bare surface. They deposit a thin film ...

In 19th-century France, the young chemist challenged the theory of spontaneous generation and discovered an invisible world of airborne microbes. Credit...Antoine Maillard Supported by By Carl Zimmer ...

Curious about the science behind double-dipping at parties? This video examines a famous Clemson University study inspired by Seinfeld, revealing how much bacteria is transferred when you dip a chip ...

As flowers bloom and temperatures climb, many are eager to get back outside. But while the Sun may be shining, there is a dark side that can make the great outdoors not so great. Gangs of germs are ...

In 10 flights over Japan, researchers found a host of bacteria and fungi. These high-altitude germs could help spread disease around the world. By Carl Zimmer Carl Zimmer has written about airborne ...

Have you ever wondered why most disinfectants indicate they kill 99.9% or 99.99% of germs, but never promise to wipe out all of them? Perhaps the thought has crossed your mind mid-way through cleaning ...