Video: SpaceX launches first mission of 2020 (members only)

NASA officials said Tuesday the weekend test-firing of the Space Launch System moon rocket’s core stage was cut short by an out-of-limits parameter in a hydraulic system for gimbaling, or vectoring, one of its engines. NASA Administrator Jim Bridenstine told Spaceflight Now engineers are “feeling pretty good” about the data gathered during the shortened test-firing, and managers may decide to ship the SLS core stage to the Kennedy Space Center for launch preparations without re-attempting the planned eight-minute hot fire.

Working overnight on Florida’s Space Coast, SpaceX technicians transferred a two-stage Falcon 9 rocket from the company’s commercial hangar a quarter-mile up the ramp to launch pad 39A early Saturday, positioning the kerosene-fueled booster for liftoff Sunday with a classified payload for the U.S. government’s National Reconnaissance Office.

A Soyuz rocket lifted off Sunday from Vostochny Cosmodrome in Russia’s Far East with 36 internet satellites built on Florida’s Space Coast for OneWeb, bringing the company’s fleet to 182 spacecraft, more than a quarter of the way to building out a constellation of nearly 650 orbiting relay nodes.