AUSTIN, Texas — A new artificial organ gives a new meaning to the phrase “making eyes.” For the first time, researchers used human cells to build a model of the surface of the eye that’s equipped with a fake eyelid that mimics blinking. This synthetic eye could be used to study and test treatments for […]
Certain skin-dwelling microbes may be anticancer superheroes, reining in uncontrolled cell growth. This surprise discovery could one day lead to drugs that treat or maybe even prevent skin cancer. The bacteria’s secret weapon is a chemical compound that stops DNA formation in its tracks. Mice slathered with one strain of Staphylococcus epidermidis that makes the […]
Deep within the hot interior of the planet, ice lurks. Now, a form of super-compact ice, found embedded in diamonds, offers the first direct clue that there is abundant water more than 610 kilometers deep in the mantle. This ice, identified by its crystal structure and called ice-VII, doesn’t exist at Earth’s surface. It forms […]
People who received kidneys from donors infected with hepatitis C did not become ill with the virus, thanks to treatment with newer drugs that can cure the disease, a small study reports. Ten patients not previously infected with hepatitis C took doses of powerful antiviral medications before and after receiving the transplants. None of the […]
LOS ANGELES — Give a graphene layer cake a twist and it superconducts — electrons flow freely through it without resistance. Made up of two layers of graphene, a form of carbon arranged in single-atom-thick sheets, the structure’s weird behavior suggests it may provide a fruitful playground for testing how certain unusual types of superconductors […]
Dramatic shifts in the East African climate may have driven toolmaking advances and the development of trading networks among Homo sapiens or their close relatives by the Middle Stone Age, roughly 320,000 years ago. That’s the implication of discoveries reported in three papers published online March 15 in Science. Newly excavated Middle Stone Age tools […]
Artificial intelligence is helping draw a more detailed map of the moon. An AI that studied lunar images to learn what craters look like has discovered thousands of new pockmarks on the moon’s surface. This program could also be used to catalog impact scars on other moons or planets, which might improve scientists’ understanding of […]
The existence of supermassive black holes in the early universe has never made much sense to astronomers. Sightings since 2006 have shown that gargantuan monsters with masses of at least a billion suns were already in place when the universe was less than a billion years old – far too early for them to have […]
It certainly feels like the northeastern United States is getting snowier. In the first two weeks of March, three winter storms slammed into the northeast corridor from Washington, D.C., to Boston. Over the last decade, a flurry of extreme winter storms has struck the region, giving birth to clever portmanteau names such as Snowpocalypse (2009), […]
Tattoos may have staying power because of a hand off between generations of immune cells known as macrophages, say a group of French researchers. If true, this would overturn notions that tattoo ink persists in connective tissue or in long-lasting macrophages. Immunologist Sandrine Henri of the Immunology Center of Marseille-Luminy, in France, and colleagues tattooed […]