<img src="https://www.washingtonpost.com/wp-apps/imrs.php?src=https://arc-anglerfish-washpost-prod-washpost.s3.amazonaws.com/public/VS34PMWJQ45QQ5K2A7VY5CP4AI.JPG&w=1024" /><br>SpaceX’s Starship lifted off the pad in Southern Texas and cleared the launchpad, its first milestone, but then began tumbling as it was preparing for stage separation and the vehicle came apart some four minutes into flight.