When the COVID-19 pandemic began to sweep the world in February 2020, Linda Guamán, a microbiologist at the UTE University of Quito, was ready to serve her country. Ecuador announced its first case on February 29 and the disease spread rapidly. Guayaquil, the country’s largest city, was especially hard hit. Hospitals, funeral homes and mortuaries
The enormous globular star cluster Omega Centauri has baffled astronomers for decades. It should be full of black holes left by exploding stars, but the evidence for them is scarce. Now, astronomers using archival data from NASA’s Hubble Space Telescope and supporting observations from NASA’s James Webb Space Telescope have finally located their first stellar-mass
From declining annual sea ice extent to greening tundra, environmental change has been gradually unfolding in the Arctic for decades. However, some changes have come more abruptly. Satellite, aerial and ground surveys spanning more than 1,000 kilometers (600 miles) along Alaska’s Brooks Range have observed stream water changing from clear to orange in more than
Analyzes of the scientific evidence led doctors to recommend that babies sleep on their backs.Credit: Yamaguchi Haruyoshi/Corbis/Getty Beyond Credibility: How Evidence Shows What Really Works Helen Pearson Princeton University. Press (2026) Consolidating the use of evidence in health and public policy has required decades of challenging work. Fifty years ago, doctors used to think that
Ready for him Final of the 2026 World Cup? You might think so, but your body will have to be prepared to put in some work, especially if your favorite team makes it. Research shows that watching high-pressure games can increase heart rate, increase stress levels and put additional strain on the cardiovascular system. According
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