Uncategorized
- Earth
Scientists Say: Pollution
Pollution is any substance or form of energy released into the environment that is harmful to people or other living creatures.
- Physics
Wild art? No, it’s a radio image of the heart of our Milky Way
Eyelash-like radio filaments accent the brightest feature in this image — a supermassive black hole.
- Chemistry
Clothes dryers may be a major source of airborne microplastics
Scientists thought washing machines were a leading contributor of microplastics. Now it appears dryers may be an even bigger problem.
- Brain
Addiction can develop when reward-seeking changes a teen’s brain
Over time, the pleasure disappears and craving grows. That craving causes stress that can drive people to use drugs or pursue unhealthy behaviors again and again.
- Chemistry
No, organic molecules alone don’t point to life on Mars
These carbon-based molecules, found in a meteorite, may reflect merely a mixing of water and minerals on the Red Planet over billions of years.
- Physics
Analyze This: Masks cut the distance that spit droplets fly
Both cloth masks and surgical masks reduced the distance spit traveled from a person talking or coughing by at least half, compared with no mask.
- Chemistry
Explainer: What are fats?
A fat molecule's three long chains of carbon and hydrogen atoms repel water, stash energy and keep living things warm — even in the bitter cold.
- Brain
Americans tend to see imaginary faces as male, not female
When people see imaginary faces in everyday objects, those faces are more likely to be perceived as male than female.
- Math
Scientists Say: Geometry
Geometry is math that allows people to measure, analyze and compare figures in space.
- Health & Medicine
Here’s how a new sleeping bag could protect astronauts’ eyesight
A new sleeping bag could avoid vision problems on long space flights due to microgravity. It counters a fluid buildup behind astronauts’ eyes.
- Environment
Explainer: Gravity and microgravity
The force of gravity holds us on the ground, keeps planets in orbit and extends throughout space. A very weak gravitational pull is called microgravity.
- Science & Society
New training builds ‘mental’ muscles in athletes
The training builds focus and resiliency while limiting the self-doubt that can cripple competitors’ ability to perform at their peak.
