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Phys.org / 'Hidden stars' suggest that distant galaxies are much more massive than they appear
Astronomers have discovered that the most massive galaxies in the early universe contain far more small stars than expected. As a result, these early galaxies were likely much more massive than initial measurements suggested. ...
Phys.org / Mars attacks: How much dust from the red planet is safe to breathe?
NASA has released a report recommending an initial health standard for the Martian dust that astronauts could inhale during future missions. Although sending people to Mars is still years away, NASA needs to establish safety ...
Phys.org / Layered rock in India shows potential signs of microbial life dating to 3.5 billion years ago
A team of researchers reports that they may have found rock containing some of the earliest forms of microbial life on Earth. Their study, published in the Proceedings of the National Academy of Sciences, describes the biosignatures ...
Medical Xpress / Psychedelic exposure during adolescence disrupts a brain circuit linked to lasting social avoidance in rats
Psychedelics, drugs that alter people's perceptions, mood and thoughts, have recently shown promise for the treatment of some psychiatric disorders. Yet many psychedelic drugs remain controlled substances in most countries ...
Phys.org / Deep-learning approach rapidly predicts where metals bind within proteins
In the living world, roughly a third of all proteins we know rely on metals to function. Zinc helps enzymes break down molecules, iron helps carry oxygen in the blood, calcium helps relay signals in cells and potassium flows ...
Phys.org / Rare satellite data reveal major limits in flood models
The Kakhovka Dam in southern Ukraine was destroyed on June 6, 2023. The event unleashed a catastrophic flood that forced thousands of residents to evacuate their communities as water levels rose 10 feet (3 meters) above normal.
Phys.org / Secrets of a mystery mammal from Patagonia revealed at last
Eight years of painstaking research on the virtually unknown Wolffsohn's viscacha have helped to shine the spotlight on this super-rare South American rodent and catalyze the conservation action it so urgently needs.
Medical Xpress / 3D-printed membrane increases oxygen transfer in artificial lungs by up to 88%
For people with severe lung diseases, a transplant of a healthy organ is often their only chance of survival. However, donor lungs are in short supply. A new artificial lung could provide a solution.
Phys.org / Sound-based traps reveal how fragile biomolecular droplets move, merge and change stiffness
Being able to measure something plays a vital role in our ability to understand many phenomena. But measuring can often affect what we are trying to measure. This is particularly the case when measuring substances that are ...
Phys.org / Climate doom may discourage climate action, but there's a way to counter it
Every summer is getting hotter. Wildfires are blazing, and the worst is yet to come. There's nothing to be done—we're doomed! Sound familiar?
Phys.org / Scientists 'see' nanoscale forces, providing evidence of electric fields at the air‑water interface
Bubbles are round, and we know surface tension does that. But squeeze that gas-liquid boundary into a space only a few tens of nanometers wide—could other forces be at work?
Medical Xpress / Most patients view their test results before their doctor, with some reporting low comprehension
You get a message that a test result is available in your online patient portal. Do you look at it right away, or do you wait to hear from your health care provider?