Watch conditions at Kennedy Space Center during Tropical Storm Isaias

These photos show the 215-foot-tall Falcon 9 rocket and Crew Dragon spacecraft on pad 39A at the Kennedy Space Center, ready for launch on a test flight to the International Space Station with NASA astronauts Doug Hurley and Bob Behnken when weather cooperates.

SpaceX’s next Falcon 9 rocket arrived at launch pad 39A Thursday for a customary hold-down engine firing. Liftoff from Florida’s Space Coast is targeted for Sunday, weather permitting.

Range personnel at Cape Canaveral will employ physical distancing, face covers and other cautionary measures to reduce the risk of spreading the coronavirus during launch operations, the commander of the U.S. military’s 45th Space Wing said. But the next launch from Cape Canaveral has been postponed from Thursday until no earlier than next week, sources said. SpaceX is planning to fire off a Falcon 9 rocket with the next batch of Starlink Internet satellites.