Musk’s SpaceX calls off Starship megarocket test flight at last minute

Last-minute problems forced a launch delay Monday for SpaceX’s mega rocket Starship, attempting a comeback following an explosion on the last test flight. The countdown began but it was halted because of issues with the rocket, the world’s largest and most powerful. Starship was supposed to blast off from the southern tip of Texas with four mock satellites on board for a space-skimming test flight.