Planets may start forming before stars even finish growing

Signs of planet formation may appear earlier than expected around still-forming baby stars, according to new results of higher resolution images produced using new improved techniques to reanalyze radio astronomy archive data. These newly discovered signs of planet formation will provide a better understanding of when it begins around a young star, thereby elucidating the…

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Ancient DNA reveals leprosy hit the Americas long before colonization

Hansen’s Disease (leprosy) is thought to have originated in Eurasia: previous studies on Mycobacterium leprae, the dominant form of leprosy, suggest the disease originated in Eurasia. Ancient pathogen genomes from old bones: a team of scientists from Germany and Argentina have reconstructed two genomes of Mycobacterium lepromatosis in 4000-year-old human skeletons from Chile. This pathogen…

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