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.
2 days ago
Dinosaurs & Fossils
4 days ago
Sustainability, Earth, Weather & Climate
5 days ago
Earth, Weather & Climate
5 days ago
Scientists had thought that kangaroo farts were environmentally friendly because they had little methane. That may not always be true.
This glossary provides definitions and audio clips to help you learn and pronounce even the toughest science terms.
This step-by-step series from the Eureka! Lab blog explains how anyone can do a research project and do it right.
Getting too little sleep has the same effect on blood sugar as eating high-fat foods, a study in dogs finds. This may set the body up for diabetes.
Bits of plastic have turned up in sea salts purchased in Chinese supermarkets. The finding suggests all sea salts may be similarly tainted. Shellfish too.
Coordinated dance routines help teens bond with one another, new data show. They also offer other benefits, including a higher threshold for pain.
Scientists showed that a potentially useful new gene-editing tool can work in dogs. It created a pair of adorable, muscular puppies. But the goal is to use it for other research purposes.
Here’s a Cool Job: writing about science. Two people who regularly do that for SNS have just picked up awards for stories on the physics of lightning and how nature recycles the dead to feed the living.
A study in mice finds the body has a special way of dealing with an itch that’s caused by a light touch. The results could lead to treatments for chronic itch.
Higher temperatures mean more energy and more motion. In contrast, cold means slow moving molecules.
Bags, fishing rope and other tiny bits of plastic are now polluting Arctic waters, posing threats to area wildlife.
The skin is the body’s largest organ. And it can let in as much or more of certain air pollutants than enter through the lungs, a new study finds.
Researchers have used light to trigger and control electrical waves in the heart. The technique might one day provide new ways to treat heart disease.
We all suffer failures. But we don’t always try again. Focusing on what they can be learned might help people keep going, brain imaging data now show.
This fossil, such as it is, offers no indication of what that life might have looked like. It merely holds carbon in a form typical of the type preferentially collected by living organisms.
Tone-deafness doesn’t mean that someone can’t hear music. The brain just misinterprets what it “hears”, a new study suggests.
Biofilms are like tiny cities of bacteria — some harmless, others destructive. Scientists are learning how to keep these microscopic metropolises under control.
By studying the genetics of living dogs from around the world, scientists think they may have homed in on the origins of dog domestication: Central Asia.
Men and women are playing sports equally — and getting concussions in comparable numbers. But how their brains respond may differ greatly.
Plague is best known as the killer disease that wiped out nearly half of Europe during the 1300s. But the germ infected people up to 3,000 years earlier than that, DNA from ancient teeth now show.
Gut bacteria in mealworms break down polystyrene. Feeding plastic to the worms, or the germs they carry, could be a way to get rid of these wastes.
The hurricane that’s storming into western Mexico has had higher sustained winds than any seen in the Western Hemisphere. It’s also got the lowest atmospheric pressure, making it a monster storm.
A combination of physics, biology and engineering lets scientists use light to trigger actions by specific brain cells. Called optogenetics, this technology is shining new light on how the brain works.
More than just dirt, soils teem with microbes essential for growing crops. Soils also help prevent floods and even play a role in climate change.
Using the Internet more than two hours a day puts teens at risk of high blood pressure, a new study finds.
Anxiety is the stress linked to worries about an upcoming event — one that may not even happen. But anxiety can affect the body every bit as much as does the stress provoked by staring down a hungry lion.
The idea that we eat three meals a day is a myth. People eat nearly constantly, and that may not be good for our health.
New research shows bubble-powered drugs can travel upstream, against the flow of blood, to seal wounds shut.
For years, paleontologists thought the fierce, sharp-toothed Dimetrodon made a meal of land-based plant eaters. Not anymore. New fossils suggest aquatic animals were its meals of choice.
Bees usually alert friends to sources of especially sweet nectar. But a new study finds caffeine is every bit as appealing to them as the sugar is. And that could compromise the quality of their honey.
The oldest stars should be made of only light elements. But these suns may have sucked up heavier elements, giving them a more youthful appearance, a new study finds.
Scientists study toxins and other natural compounds in search of alternatives to ineffective antibiotics and dangerous pesticides.
A new study compares the hunting habits of wild animals and humans. People, it turns out, are unlike any other predator on Earth.