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Science X / Our ancient continents were built from sun-baked ocean leftovers, proving Earth was recycling long before it was cool

New isotopic evidence is rewriting the story of Earth's first continents. Imagine the planet nearly 3.8 billion years ago: a water world ringed by volcanic islands. How did solid continents arise in such an alien world?

12 hours ago
Tech Xplore / Seven smart rings promise to break sign language barriers by turning hand movements into instant text

Researchers in South Korea have developed a new sign language translation system based on users wearing seven rings equipped with sensors. According to a new study published in the journal Science Advances, the technology ...

11 hours ago
Tech Xplore / Self‑driving cars struggle to see at night or in fog—but imitating the human brain can make them safe

Picture this: you're driving on a mountain road, when you suddenly hit a thick patch of fog. You respond instinctively. Your vision sharpens, and you narrow your eyes to make out the shape of any oncoming cars.

3 hours ago
Medical Xpress / Successfully treated acute myeloid leukemia patients may hold the key to new CAR T cell therapy

Developing effective immunotherapies for acute myeloid leukemia (AML) has long been hampered by a critical challenge: Therapy directed at killing the leukemia cells may also harm the body's ability to make new, healthy blood ...

7 hours ago
Phys.org / How temperature changes light: New model could guide smarter LEDs, sensors and photonic devices

Technion researchers have developed, for the first time, a comprehensive physical model explaining how the properties of a radiating material, including absorption, emission, and quantum efficiency, affect the fundamental ...

7 hours ago
Medical Xpress / New position statement highlights the growing role of genicular artery embolization for knee osteoarthritis

A new Society of Interventional Radiology (SIR) position statement provides evidence-based support for the use of genicular artery embolization (GAE) as a minimally invasive treatment option for patients with symptomatic ...

3 hours ago
Medical Xpress / New study challenges the idea that testosterone drives risk-taking behavior

Men are more likely to take risks in tricky situations than women, but whether there is an inherent biological reason behind it is a question researchers have been asking for quite some time. A popular theory suggests that ...

12 hours ago
Phys.org / The shoal remembers: How signs of a collective memory shape a predator-prey arms race

Beneath the tropical trees of southern Mexico, enormous shoals of sulfur mollies blanket the water surface of toxic sulfur springs, where survival depends on collective defense against relentless attacks from predatory birds. ...

6 hours ago
Phys.org / How a single radioactive cloud caused Fukushima particle contamination

A new study shows that a single radioactive cloud was responsible for a large share of the nuclear fallout during the Fukushima Daiichi nuclear disaster on 11 March 2011. The work is published in the Journal of Hazardous ...

8 hours ago
Phys.org / Iodine deficiency is creeping back. Vegans, vegetarians and pregnant women are most at risk

Iodine deficiency is often seen as a problem of the past, but this isn't entirely true. During the 20th century, the iodization of salt became one of the most effective public health interventions for preventing conditions ...

4 hours ago
Phys.org / Swapping molecular building blocks one by one reveals how receptors tell adrenaline from dopamine

Different receptors respond to different neurotransmitters or hormones, such as adrenaline involved in the fight-or-flight response, or dopamine linked to reward and motivation. Both the receptors themselves and the substances ...

7 hours ago
Science X / Dinosaurs had company in the dark: Amber fossil reveals an ancient glow that lit Cretaceous nights

Forget what you thought you knew about fireflies. A remarkable discovery reveals their iconic glow was already lighting up the world when dinosaurs still roamed.

15 hours ago