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Newsweek (EUA) online
Em 2026: 1 notícias
Desde 1995: 23 notícias
Astronomers Discover Record-Breaking Asteroid
Publicado em 08 de janeiro de 2026
Scientists have discovered the fastest-spinning asteroid sized over 0.3 miles in diameter, which is rotating about once every two minutes. Dubbed 2025 MN45, the space rock is some 2,300 feet across and spans nearly the size of eight football fields.
The record-breaking space rock is one of 19 “super- and ultra-fast-rotating” asteroids found among around 1,900 asteroids astronomers detected for the first time last June.
The asteroids were revealed using the Legacy Survey of Space and [...]
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Half of World’s Beaches ‘Will Disappear by End of the Century’
Publicado em 19 novembro 2025Beaches across the globe are undergoing a process of “crushing,” with rising sea levels and coastal urbanization damaging ecosystems, accelerating erosion and threatening sandy shorelines. Omar Defeo, a professor at Uruguay’s University of the Republic, said that the issue is both urgent and global. “In my presentation at FAPESP [Fundação de Amparo à Pesquisa do Estado de São Paulo] Day last Thursday, I showed several slides related to our [...]ver notícia -
Space Weather May Trigger Heart Attacks in Women
Publicado em 30 setembro 2025Solar storms—giant bursts of energy from the Sun that disturb the Earth’s magnetic field—may play a role in triggering heart attacks, particularly in women, a new study has found. Researchers led from the National Institute for Space Research (INPE) analyzed hospital records from São José dos Campos, Brazil, between 1998 and 2005—a period marked by high solar activity. Specifically, the team compared 1,340 heart attack cases (reported among 871 men and 469 women) with data on [...]ver notícia -
Startup Creates Pill That Makes Fat Cells Burn Calories While You're at Rest
Publicado em 28 julho 2025In the coming years, losing weight might be as simple as taking a pill. A biotech based in has successfully completed early-stage human trials for a first-in-class drug that targets cells to burn more calories, even while the body is at rest. Developed by Eolo Pharma, the compound—known as SANA—could be a crucial breakthrough in metabolic Unlike traditional drugs that suppress appetite, SANA stimulates energy expenditure in fat tissue. In the June 2025 edition of [...]ver notícia -
Scorpion Venom Could Help Treat Breast Cancer
Publicado em 18 junho 2025A venomous creature from the Amazon rainforest may hold the key to fighting one of the deadliest cancers affecting women today. According to the American Cancer Society, skin cancers aside, breast cancer is the most common cancer among women in the U.S.—accounting for about 30% of all new female cancer cases annually, with an estimated 42,170 women expected to die from it in 2025. Brazilian scientists have discovered that the venom of the Brotheas [...]ver notícia -
If You Like Chocolate, Coffee or Wine, Scientists Have Good News for You
Publicado em 21 fevereiro 2025There's good news for chocolate and wine lovers, as scientists have found some of our favorite treats may help reduce the risk of heart disease. A study of more than 6,000 people found a link between diets rich in foods including fruit, vegetables, chocolate, coffee and wine, and the reduced risk of metabolic syndrome. Metabolic syndrome is a cluster of conditions that occur together—including increased blood pressure, high blood sugar, excess body fat around the waist and [...]ver notícia -
Scientists Reveal Exercises That May Help Fight Off Alzheimer's
Publicado em 16 janeiro 2025Getting your steps in could help fight off Alzheimer's, new research has found. Regular aerobic exercise was linked to a reduction in markers in the brains of in rats that associated with the onset of Alzheimer's, including amyloid plaques, according to a new paper in the journal Brain Research. Doing cardio could therefore help fight off the development of Alzheimer's, the researchers say. "Alzheimer's is a progressive neurodegenerative disorder with no known [...]ver notícia -
Ants Mastered Agriculture Millions of Years Before Humans
Publicado em 03 outubro 2024While humans may think of agriculture as a uniquely human achievement, ants have been farming their own food for millions of years, a new study has revealed. Researchers found that ants began cultivating fungi 66 million years ago, around the time an asteroid struck Earth and caused a global mass extinction. This mass extinction event, which wiped out the dinosaurs, also created conditions that allowed fungi to thrive. With plentiful decaying plant matter on the [...]ver notícia -
Vegans Need Ultra-Processed Proteins for Healthy Diet, Study Says
Publicado em 20 setembro 2024Ultra-processed foods, such as meat replacements and protein powders, allow vegans to meet their protein requirements, according to recent research. Nutrition experts have often debated whether a vegan diet can provide enough protein because plant-based foods tend to be less protein-rich than meat, eggs and dairy. However, the 774 vegan Brazilians who participated in this study were found, on average, to consume a healthy amount of protein and all the essential amino acids, which are the [...]ver notícia -
Scientists Reveal Cheeses With Untapped Health Benefits
Publicado em 30 agosto 2024Cheese could be healthier in the future now that microbiologists in Brazil have discovered three novel strains of probiotic bacteria in samples of traditional cheeses. Probiotics are live microorganisms that, when eaten in food, may remain in the gut. People who have lots of—and lots of different types of—probiotic bacteria and yeasts in their gut are thought to have healthy microbiomes, i.e., microbial communities. A healthy gut microbiome is associated with good mental [...]ver notícia