Q&A with Emiliano Kargieman, founder and CEO of Satellogic (members only)

The launch of a commercial Bulgarian television broadcast satellite from NASA’s Kennedy Space Center in Florida is set for Monday after SpaceX ran through a mock countdown Thursday and test-fired a previously-flown Falcon 9 rocket’s Merlin main engines.

SpaceX launched the next group of satellites for the company’s Starlink broadband network Wednesday at 9:25 p.m. EDT (0125 GMT Thursday) from pad 40 at Cape Canaveral Air Force Station. The satellites rode into orbit on a Falcon 9 rocket with a first stage flown on four previous missions, and the booster made a successful fifth landing on a SpaceX drone ship in the Atlantic Ocean.

An antenna-covered communications spacecraft that will bring more bandwidth and capacity to the U.S. military’s global information grid than any single satellite ever before was successfully launched Wednesday atop a Delta 4 rocket.