For years, parents, teenagers, pediatricians, educators and whistleblowers have pushed the idea that social media is detrimental to young people's mental health and can lead to addiction, eating disorders, sexual exploitation and suicide. In Los Angeles on Wednesday, a jury found both Meta and YouTube liable for harms to children using their services. In New Mexico, a jury determined that Meta knowingly harmed children’s mental health and concealed what it knew about child sexual exploitation

Officials said a train accident in southern Mexico injured at least 15 people and halted traffic along a rail line connecting the Pacific Ocean with the Gulf of Mexico. The Interoceanic Train linking the states of Oaxaca and Veracruz derailed as it passed a curve near the town of Nizanda. In a message on X Sunday, Oaxaca state Gov. Salomon Jara said several government agencies had reached the site of the accident to assist the injured.

When Jennifer Austin met Molly in second grade, they quickly became best friends. “Strong friendships really do stay for the long haul," Austin, 51, said. Early friendships are some of the deepest: the schoolmates who shared bike rides and their favorite candy.

Scientists in Britain say ancient humans may have learned to make fire far earlier than previously believed, after uncovering evidence that deliberate fire-setting took place in what is now eastern England around 400,000 years ago. Until now, the oldest confirmed evidence had come from Neanderthal sites in what is now northern France dating to about 50,000 years ago. The discovery was made at Barnham, a Paleolithic site in Suffolk that has been excavated for decades.

South Korea lofted the CAS500-3 Earth-observation satellite and a dozen ride-along cubesats Wednesday (Nov. 26) on the fourth-ever launch of its Nuri rocket.

Artemis II hit a key milestone Thursday when Orion ignited its engine, propelling the crew on a trip that will reach deeper into space than any human has traveled.

Dr. Ralph Abraham has been Louisiana's surgeon general since 2024.

Like a mood ring, clothing could let future space travelers know when they've been exposed to unsafe levels of radiation.