Watch the Falcon 9 launch from pad 39A

A commercial Dragon cargo capsule will remain at the International Space Station until Saturday, three days later than previously planned due to high sea states observed by the SpaceX recovery team in the spaceship’s splashdown zone in the Pacific Ocean.

A pair of European-built, NASA-backed research satellites set for launch Tuesday from California will extend 15 years of global gravity field measurements collected by the GRACE mission before it ended last year, supplying scientists with data to help track the melting of Earth’s ice sheets and chart the impacts of floods and droughts.

SpaceX’s Falcon 9 rocket will go from the Kennedy Space Center to low Earth orbit in 10 minutes Saturday with a Dragon capsule heading for the International Space Station carrying nearly 5,500 pounds of supplies and experiments.