Washington — President Trump ordered military strikes on Iran early Saturday after pressing the country to curtail its nuclear program, grappling with an issue that has vexed presidents from both ...

Data assimilation is a technique by which observations are combined with an NWP product (the first guess or background forecast) and their respective error statistics ...

The short program and the slightly longer free skate are the two performances that determine which figure skaters will go home with gold, silver or bronze at the Olympics. This year, Amber Glenn, ...