内容摘要：The Associated Press Health and Science Department receives support from the Howard Hughes Medical Institute’s Science and Educational Media Group and the Robert Wood Johnson Foundation. The AP is solely responsible for all content.

The Associated Press Health and Science Department receives support from the Howard Hughes Medical Institute’s Science and Educational Media Group and the Robert Wood Johnson Foundation. The AP is solely responsible for all content.

Chen Dong led construction of the space station during the Shenzhou 14 mission.While in space, the astronauts will carry out experiments in space medicine, and space technology; perform extravehicular trips; and make improvements to the space station.

owing to U.S. national security concerns over the control of the country’s space program by the People’s Liberation Army, the military branch of the ruling Communist Party.China’s space program has grown rapidly in recent years. The space agency hasand a rover on the far side of the moon. It aims

The returning astronauts are expected to land on April 29.NEW YORK (AP) — A strong solar storm headed to Earth could produce

across more U.S. states than usual Tuesday night.

earlier this week burped out huge bursts of energy called coronal mass ejections, leading space weather forecasters to issue a geomagnetic storm watch.The U.S. Agriculture Department sets nutrition guidelines for the national school lunch and breakfast programs, which serve nearly 30 million students each school day.

The nutrition standards are required to meet the federal Dietary Guidelines for Americans, which are reviewed and revised every five years. Since 1985, those guidelines have recommended that Americans older than age 2 consume low-fat or fat-free dairy.The 2025-2030 dietary guidelines are set for revision this year under a joint effort by USDA and the Department of Health and Human Services. A panel of scientific experts who reviewed evidence regarding milk fat content recommended that the U.S. policy remain the same.

changes in the federal nutrition program after the 2010 law have slowed the rise in obesity among U.S. kids — even teenagers, said Deanna Hoelscher, a nutrition expert and researcher at the University of Texas Health Science Center who served on the dietary guidelines committee.“We didn’t find enough definitive evidence to change a policy that’s been in place that has shown good outcomes to date,” Hoelscher said.