All Stories by Kathryn Hulick
- Health & Medicine
Explainer: What is skin?
The body’s soft, outer armor contains three layers, each with its own important role to play.
- Health & Medicine
Minty fresh zits treatment?
Some nontraditional acne treatments work at cleaning up pimples.
- Health & Medicine
The truth about zits
A common bacterium called P. acnes usually helps keep the skin healthy. But under some conditions, and especially during puberty, it can trigger painful, embarrassing outbreaks of unsightly pimples.
- Animals
Do dogs have a sense of self?
Dogs don’t know their own reflections in a mirror, but they do recognize themselves from the scent of their own urine, a new study finds.
- Animals
Some otters wear red algae
Some sea otters in California sport coats of red algae. A new study finds the species most likely is a non-native organism from half a world away.
- Tech
Engineers consider liquid salt to generate power
A new type of power plant, a molten salt reactor, might provide electricity in a cleaner and safer way than current nuclear technology.
- Chemistry
Some 3-D printing can leave toxic taint
The ”ink” inside some 3-D printers can leave toxic traces. In tests, these chemicals harmed baby fish. But lighting could render the parts safer.
- Microbes
Slime cities
Biofilms are like tiny cities of bacteria — some harmless, others destructive. Scientists are learning how to keep these microscopic metropolises under control.
- Animals
Rare as a rhino
Most species are rare. Some have always been rare. A problem develops when people are responsible for accelerating a species’ rarity to the point that extinction threatens.
- Physics
X-ray ‘eyes’
Movie directors often make “short” subjects, flicks running sometimes just a few minutes or so. But scientists have begun making much quicker “shorts,” essentially nanofilms. Their goal: catching science in action.
