Violent Collision of Two Black Holes Rippled Across the Universe
The violent collision between the spinning objects, one about 100 times the mass of the sun and the other about 140 times that amount, produced a gravitational wave that rippled across the universe.
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The Verge
30 minutes ago
- The Verge
NASA's reportedly fast-tracking plans to build a nuclear reactor on the moon.
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New York Times
an hour ago
- New York Times
Bird Flu May Be Airborne on Dairy Farms, Scientists Report
The bird flu virus that has beset dairy farms since early last year may be spreading through the air in so-called milking parlors and through contaminated wastewater, as well as from milking equipment, scientists have found. The Department of Agriculture has said that the virus spreads primarily from milking equipment or is carried by dairy workers and vehicles traveling between farms. But in the new study, scientists found live virus in the air of milking facilities, suggesting that cows and farmworkers might have become infected by inhaling the pathogen. The virus may also spread by water used to clean cattle barns or contaminated with discarded milk. The study was posted online last week and has not been peer reviewed for publication. But the results are consistent with those from other teams who found that contaminated milking equipment might not explain all cases of bird flu observed on farms. In the new study, researchers also found infected cows with no visible symptoms, suggesting that bird flu may spread from cows that appear healthy. Just as people can become infected with the seasonal flu virus by touching a sick person, from contaminated surfaces or by inhalation, 'there is no one way' that bird flu spreads, said Seema Lakdawala, a virologist at Emory University who led the work. Want all of The Times? Subscribe.
Gizmodo
2 hours ago
- Gizmodo
Diet Swap Study Reveals How Ultra-Processed Foods Can Derail Weight Loss
In case you needed more incentive to cut down on ultra-processed foods, a new diet swap study out today reveals that people experienced greater weight loss while eating minimally processed foods than they did when they ate a nutritionally similar, ultra-processed diet. In a six-month trial led by scientists at University College London, study participants were assigned one of the two diet regimes to follow for eight weeks, and then took a four week break before swapping to the other diet for another eight weeks. Participants lost more weight while eating the minimally processed diet than the ultra-processed one; they also shed more unhealthy fat. The findings, published Monday in Nature Medicine, suggest that, among other things, ultra-processed diets are especially good at stoking people's food cravings, the researchers said. Ultra-Processed Foods Have Disturbing Health Effects, Large Review Finds Although there is some debate over what constitutes an ultra-processed food, there are generally considered products or ingredients that have gone through high levels of industrialized processing, like breakfast sausages, candy, or sodas. There is a growing mountain of evidence that suggests a diet rich in ultra-processed foods is less healthy overall than a diet made up of mostly whole foods, and that ultra-processed foods may raise the risk of certain diseases. Most of this research, however, only shows a correlation between ultra-processed diets and poorer health outcomes, and not a direct cause-and-effect link. Clinical trials can provide stronger evidence, but they're notoriously difficult to do in the world of nutrition science for many reasons, particularly funding, the researchers said. A New Diet Study Confirms Your Worst Suspicions About Ultra-Processed Foods The results highlight the importance of following government dietary guidelines, Dicken said. But the study also indicates that people who want to lose weight may see the most benefit from sticking to minimally processed foods. As to why the ultra-processed foods are worse for dieting, the researchers have their educated guesses. Ultra-processed foods tend to have more appealing textures and artificially boosted flavors, which often means they are softer or easier to eat, and tastier. Their appearance and packaging might also make them more visually appealing to potential customers. Interestingly, the volunteers in this study reported that both diets were equally satisfying to eat on average, but they also reported having better control over their cravings while on the minimally processed diet. Dicken noted that the researchers weren't able to directly test these potential explanations in this trial, though, so more research is needed to know for sure. The team has already launched their next study, which is testing out a behavioral support program to reduce people's intake of ultra-processed foods. But Dicken cautioned that it will take widespread societal shifts, not individual scolding, to change our collective diets for the better.
