SpaceX’s mammoth Starship rocket blasted off Friday on another test flight stretching halfway around the world, this time releasing 20 of the most advanced Starlinks. Towering 407 feet (124 meters), Starship soared from the company’s base at the southern tip of Texas. NASA monitored the space-skimming flight, a critical step toward using the Starship as a lunar lander for moon crews. The hourlong journey ended with a splashdown so soft that the spacecraft remained afloat in the Indian as a...