https://www.theregister.co.uk/2020/01/20/spacex_abort/

SpaceX looks set to shove a pair of astronauts into its Crew Dragon capsule following a successful demonstration of abort systems over the weekend.

After a postponement due to weather, the sacrificial Falcon 9 finally left the Kennedy Space Center's Launch Complex 39A at 15:30 UTC on Sunday 19 January. Approximately a minute and a half into the flight the engines of the booster were shut down as planned to trigger the abort.