Ukrainian front-line school system goes underground to protect against bombs and radiation

ZAPORIZHZHIA, Ukraine — To be a parent in the Ukrainian front-line city of Zaporizhzhia means weighing your child’s life against the Russian weapons within striking distance. Most rain death in an instant: the drones, the ballistic missiles, the glide bombs, the artillery shells. But Russian soldiers control another weapon they have never deployed, with the…

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Report says crowd-sourced fact checks on X fail to address flood of US election misinformation

SAN FRANCISCO — X’s crowd-sourced fact-checking program, called Community Notes, isn’t addressing the flood of U.S. election misinformation on Elon Musk’s social media platform, according to a report published Wednesday by a group that tracks online speech. The nonprofit Center for Countering Digital Hate analyzed the Community Notes feature and found that accurate notes correcting…

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Scientists detect traces of an ancient Mayan city in southern Mexico using laser-sensor technology

NEW ORLEANS — Archaeologists using laser-sensing technology have detected what may be an ancient Mayan city cloaked by jungle in southern Mexico, authorities said Wednesday. The lost city, dubbed Valeriana by researchers after the name of a nearby lagoon, may have been as densely settled as the better-known pre-Hispanic metropolis of Calakmul, in the south…

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