French children under 15 should be banned from social media and there should be an overnight “digital curfew” for 15-18 year olds, a parliamentary commission has recommended. The six-month inquiry into the psychological effects of TikTok on minors has found that the short video-sharing platform “knowingly exposes our children, our young people to toxic, dangerous…

Archaeological excavations near Aldborough, UK, are helping us understand life after Roman occupation R Ferraby & M.J. Millet When the Roman Empire withdrew from Britain, the result was not chaos and economic collapse. The metals industry in what is now northern England continued and even expanded in the subsequent centuries, according to an archaeological record…

Illustration of two black holes merging and sending gravitational waves across the cosmos Maggie Chiang for Simons Foundation Stephen Hawking’s 50-year-old theorem on how black holes merge together has been successfully tested thanks to huge advances in gravitational wave astronomy, which helped astronomers catch the waves caused by an unusually powerful collision as they passed…