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The United States accused Russia on Thursday of test-firing an anti-satellite weapon in space, warning that the threat against Washington’s systems was “real, serious and increasing.” US Space Command “has evidence” that Moscow “conducted a non-destructive test of a space-based anti-satellite weapon” on July 15, it said in a statement. “Last week’s test is another
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As scientists scramble to figure out where exactly the coronavirus pandemic emerged, other virologists are still chasing the origins of another once-devastating disease – smallpox.  Now, they’ve found viral DNA of an ancient strain of smallpox in Viking Age archaeological remains from northern Europe. The samples, dated at the earliest to 603 CE, provide definitive
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Scientists have, for the first time, discovered an active leak of methane gas from the sea floor in Antarctica. It is a process that’s likely to accelerate the process of global heating. The finding was published in the peer-reviewed Proceedings of the Royal Society B scientific journal on Tuesday. Methane is powerful greenhouse gas that accelerates climate
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Tools excavated from a cave in central Mexico are strong evidence that humans were living in North America at least 30,000 years ago, some 15,000 years earlier than previously thought, scientists said Wednesday.​ Artefacts, including 1,900 stone tools, showed human occupation of the high-altitude Chiquihuite Cave over a roughly 20,000 year period, they reported in
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In ancient Greece, several hundred years before the common era and long before the invention of wheelchairs, some holy sanctuaries may have been specially designed with disability in mind. While ramps were not particularly common in the fourth century BCE, ancient healing temples are often ringed by these permanent stone structures. Archaeologist Debby Sneed from California
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Astrophysicists on Monday published the largest-ever 3D map of the Universe, the result of an analysis of more than 4 million galaxies and ultra-bright, energy-packed quasars. The efforts of hundreds of scientists from around 30 institutions worldwide have yielded a “complete story of the expansion of the Universe”, said Will Percival of the University of
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We might have a problem with our roads: researchers have discovered that sunlight and rain might be able to turn certain compounds in asphalt into a potentially dangerous hydrocarbons, threating the surrounding environment and people using these routes. In particular, it’s the binder (also called asphalt cement) that’s the problem. This heavy, black glue is
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A heatwave in Siberia that saw temperature records tumble as the region sweltered in 38-degree Celsius highs was “almost impossible” without the influence of human-made climate change, leading scientists said. An international team of researchers found that the record-breaking warm period was more than 2 degrees Celsius hotter than it would have been if humans
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Similar to orcas and pilot whales, the enigmatic beluga whale has long been assumed to live out their lives in pods based around close maternal ties. But new research shows their social structures go far beyond sibling quid-pro-quo. By combining DNA profiling with mathematical network analysis, researchers have found belugas (Delphinapterus leucas) across the Arctic hang
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Russian prosecutors on Wednesday said they were conducting an inspection of a facility supposed to treat acid runoff from an abandoned Urals mine after photographs emerged of streams running orange. Drone footage uploaded last week by an Instagram travel blogger showed a bright-orange landscape near the disused copper-sulphide mine close to the village of Lyovikha