NASA Administrator Jim Bridenstine says he is “fairly confident” that astronauts can fly to the International Space Station aboard SpaceX’s Crew Dragon spaceship at the end of May or early June, pending final parachute tests, data reviews and a training schedule that can escape major impacts from the coronavirus pandemic.

Watch as a Falcon 9 rocket with the first Crew Dragon capsule atop, briefly fired its engines for a crucial pre-launch test on Jan. 24, 2019.

Running several days late after a series of technical and weather delays, a Falcon 9 rocket lifted off from Vandenberg Air Force Base in California at 6:17 a.m. PST (9:17 a.m. EST; 1417 GMT) with the Spanish-owned Paz radar observation satellite and two prototype payloads for SpaceX’s planned Starlink broadband satellite network.