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Phys.org / NASA conducts second rocket fueling test that will decide when Artemis astronauts head to the moon

NASA took another crack at fueling its giant moon rocket Thursday after leaks halted the initial dress rehearsal and delayed the first lunar trip by astronauts in more than half a century.

2 hours ago in Astronomy & Space
Medical Xpress / Eyes may be a window into early Alzheimer's detection

The eyes—specifically, the outer area of the retina—may provide a window into early detection of Alzheimer's disease (AD) long before irreversible brain damage has occurred, according to new research from Houston Methodist. ...

Medical Xpress / Low-field MRI is safe, feasible and more comfortable for breast screening, finds study

Researchers at Mass General Brigham have demonstrated the technical feasibility of using ultra-low field (ULF) magnetic resonance imaging (MRI) for breast imaging. With further refinement and evaluation, the technology could ...

11 hours ago in Radiology & Imaging
Phys.org / Global study finds smaller fish and shifting food webs despite stable species numbers

Species numbers alone do not fully capture how ecosystems are changing. In a global study, scientists analyzed long-term data from nearly 15,000 marine and freshwater fish communities. They found that fish food webs have ...

5 hours ago in Biology
Medical Xpress / 'The munchies' are real and could benefit those with no appetite

The urgent onset of "the munchies" after cannabis use isn't imaginary—it's a cognitive response that occurs regardless of sex, age, weight or recent food consumption and could offer clues to help people struggling with ...

5 hours ago in Health
Medical Xpress / Blood and urine DNA tests may help some bladder cancer patients avoid surgery

Researchers at the Icahn School of Medicine at Mount Sinai have reported promising findings that may help redefine treatment for patients with muscle-invasive bladder cancer, a potentially aggressive form of the disease traditionally ...

3 hours ago in Oncology & Cancer
Medical Xpress / Brain organoids can be trained to solve a goal-directed task

Imagine balancing a ruler vertically in the palm of your hand: you have to constantly pay attention to the angle of the ruler and make many small adjustments to make sure it doesn't fall over. It takes practice to get good ...

5 hours ago in Neuroscience
Medical Xpress / Red blood cells soak up sugar at high altitude, protecting against diabetes

Scientists have long known that people living at high altitudes, where oxygen levels are low, have lower rates of diabetes than people living closer to sea level. But the mechanism of this protection has remained a mystery. ...

Phys.org / Rocket re-entry pollution measured in atmosphere for first time

When part of a SpaceX rocket re-entered Earth's atmosphere exactly a year ago, it created a spectacuglar fireball that streaked across Europe's skies, delighting stargazers and sending a team of scientists rushing toward ...

5 hours ago in Astronomy & Space
Tech Xplore / New gel electrolyte points to stronger, safer anode-free lithium batteries

Researchers at Columbia Engineering have developed a new gel electrolyte that both improves the lifetime and safety of anode-free lithium batteries, an emerging battery architecture that could dramatically boost energy density ...

5 hours ago in Engineering
Tech Xplore / Choosing experiments randomly can help scientists develop better theories, new model reveals

The race to develop a virtual scientist—an AI creation that conducts every stage of research, from idea to publication—has consumed researchers, start-up founders, and tech juggernauts alike.

11 hours ago in Machine learning & AI
Phys.org / Mediterranean wetland under pressure, report shows

On World Wetlands Day, the recent report released by the Mediterranean Wetlands Observatory (MWO) warns that despite their vital importance for populations and biodiversity, Mediterranean wetlands remain fragile ecosystems, ...

2 hours ago in Earth