All Stories
- Health & Medicine
Library books could come with a side of germs
People transfer microbes to most of the things we touch. Does that extend to our library books? A teen did an experiment to find out.
- Science & Society
Research is important because…
Teens wouldn’t do science unless they felt it was important. Here’s why they think it matters so much.
- Physics
Why your shoelaces untie themselves
High-speed video shows how the combined motions of a shoe’s swinging and landing on the ground provoke shoelaces to come untied.
- Materials Science
Nanowires made from silver are super stretchy
When silver nanowires stretch slowly, atoms on their surface can spread to heal weak spots. The discovery could lead to more flexible electronics.
- Animals
These killer whales exhale sickening germs
A group of endangered killer whales are exhaling disease-causing germs. Researchers worry these microbes could make the animals sick.
- Space
Scientists Say: Supernova
When a star has too much mass, it can explode. The explosion is called a supernova.
- Archaeology
America’s first settlers may have arrived 130,000 years ago
An archaeological site where mastodon remains were found suggests that the first Americans may have arrived unexpectedly early.
- Health & Medicine
Tattoos: The good, the bad and the bumpy
Tattoos and their inks can cause regrets and allergic reactions. But here’s a surprise: Some inked body art may actually benefit health by boosting its host’s immune system.
- Animals
Flu fighter found in frog slime
A protein found in the mucus secretions of an Indian frog can take down a type of flu virus, a new study finds.
- Archaeology
This hominid may have shared Earth with humans
Newfound fossils in South Africa point to a far more recent age for Homo naledi than had been accepted. If correct, this hominid might have coexisted with humans — even interacted with our species.
- Physics
These antennas turn anything into a radio station
Engineers have developed antennas that can turn ordinary objects — even posters — into radio stations.
- Earth
Death by asteroid may come in unexpected ways
Most deaths from an asteroid impact would likely come from shock waves and winds, not earthquakes and tsunamis. That's the conclusion of new studies. The good news: Such killer space rocks are quite rare.
