Rolling toward a mid-May deployment of a clandestine spy satellite, United Launch Alliance’s triple-body Delta 4-Heavy rocket moved from its Cape Canaveral assembly building to pad 37B yesterday.

Sierra Nevada and United Launch Alliance have announced the most powerful version of the Atlas 5 rocket, with five strap-on boosters and a twin-engine upper stage, will send the first two Dream Chaser cargo missions to the International Space Station from Cape Canaveral in 2020 and 2021, a schedule that still must be confirmed by NASA.

SpaceX completed another another launch to add to the company’s Starlink broadband network Thursday. A Falcon 9 rocket lifted off at 8:46 a.m. EDT (1246 GMT) Thursday from pad 39A at NASA’s Kennedy Space Center in Florida.