On Wednesday, I spoke with Mebrahtom Keflezighi, perhaps the most successful American marathoner of all time. He won the New York City marathon in 2009 and the Boston Marathon in 2014. He won an Olympic silver medal and was internationally Continue reading →
Hong Kong (CNN)The Chinese scientist who sparked an international outcry after alleging to have helped create the world’s first genetically edited babies has raised the possibility of a third child being born, after announcing that a separate woman was Continue reading →
(CNN)Due to the wildfires raging in Northern California, San Francisco, Stockton and Sacramento were the world’s three “most polluted cities” on Friday morning, according to Berkeley Earth, a nonprofit that aggregates data from air-quality monitoring sites.