All Stories
- Chemistry
Scientists Say: Inorganic
Inorganic molecules include salts, minerals and other compounds that lack organics’ carbon-hydrogen bonds.
- Animals
Surprise! Sixteen tiny wasp species found masquerading as one
Scientists used new and old tools to overturn 160-year-old ideas about this wasp. They show you can’t tell a wasp by its looks.
- Fossils
One of the earliest meat-eating mammals was saber-toothed
Millions of years before the evolution of saber-toothed cats, a newly discovered "hypercarnivore" prowled the forests of what is now San Diego.
- Environment
We all unknowingly eat plastic, which may host toxic pollutants
In the environment, plastics attract all types of toxic chemicals. If ingested, new data show, chemicals on those plastic bits may harm the gut.
- Physics
Explainer: The fundamental forces
Four fundamental forces control all interactions between matter, from the smallest subatomic particles to the largest structures in the universe.
- Materials Science
Engineers borrow a tree’s cellulose to toughen new materials
Cellulose gives plants their strength. Engineers are turning this renewable, environmentally friendly resource into brand new materials.
- Physics
Scientists Say: Doppler effect
The Doppler effect is a perceived change in the frequency of light or sound waves due to the wave source moving relative to an observer.
- Animals
Mosquitoes see red, which may be why they find us so appealing
Mosquitoes not only see colors, but also prefer certain ones, such as the hues of human skin.
- Tech
Robots made of cells blur the line between creature and machine
Scientists are using living cells and tissue as building blocks to make robots. These new machines challenge ideas about robots and life itself.
- Tech
A new device uses atoms’ quantum weirdness to peer underground
Quantum sensors like this one could monitor magma beneath volcanoes or uncover archaeological artifacts.
- Science & Society
Let’s learn about citizen science
Volunteers across the globe are gathering and analyzing data for research on the environment, health, space and more.
- Math
Scientists Say: Equation
An equation states that two groups of numbers or variables are equal to each other.
