Why Does Warmer Air Make It More Difficult for Planes to Take Off?

Overall, the data showed that as the temperature increased, air density decreased, causing takeoff speeds to…

Why Are Rodents Such Popular Test Subjects?

Interestingly, we can't say for sure just how many rats or mice are used in studies…

Leonid Meteor Shower: What You Need to Know

This optical time-exposure image shows Leonid meteors as streaks contrasting with the curved tracks of star…

This Sacred Quarry Is a Cornerstone of Native American Spirituality

Pipestone or catlinite must be removed one layer at a time, and by hand. The bottom…

Leading Scientists Name 10 Essential Climate Issues for COP27

The 2022 United Nations Climate Change Conference (COP27) is the 27th U.N. conference on the topic…

What’s the Order of the Planets in the Solar System?

There are lots of tricks for remembering the order of the planets. This illustration shows them…

Seasonal Affective Disorder: Why It Gets You Down and How to Manage It

Some people notice that their symptoms start to improve when the seasons begin to change and…

What’s the Difference Between Mold and Mildew?

These beautiful books are stored in one of Portugal's National Archives. Despite only being from the…

4 Quantum Physics Misconceptions, Busted

Schrödinger's cat is world famous, but what does it really mean? Robert Couse-Baker/Flickr/CC BY 2.0 Quantum…

8 Native American Scientists You Should Know

Astronaut Nicole Mann sits inside a T-38 trainer jet at Ellington Field in Houston, Texas, Nov.…