A new study on the global pandemic has found that those who contract COVID-19 may exhibit a predictable sequence of symptoms, and the sequence differs from what we experience with flu and other coronaviruses. To date, the most probable sequence of initial COVID-19 symptoms proves tendency to start with a …
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Life tried, but it did not work. As the Late Devonian period approached, more and more living things died out, culminating in one of the greatest events of mass extinction our planet has ever witnessed, some 359 million years ago. The culprit responsible for so many deaths may not have …
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A few Danish computer scientists have solved a years-long mathematical puzzle that lay dormant for decades, after researchers made insignificant progress since the 1990s. The abstract problem in question is part of what is called graph theory, and specifically deals with the challenge of finding an algorithm to solve the …
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About 15,000 light-years away, an active black hole periodically appears to illuminate another unremarkable cloud of gas with gamma rays. But there is a catch. The gas cloud is about 100 light-years from the black hole – and just how the cloud pulsates with it in time is a mystery. …
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The benefits of wearing face masks to support the spread of COVID-19 are now well understood, but scientists are still looking for better materials to use – and a ‘filter paper’ made of titanium oxide nanowires shows much promise. The new material is so good at capturing pathogens, and destroying …
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