NASA and Elon Musk’s commercial rocket company SpaceX launched a new four-astronaut team on a flight to the International Space Station on Friday, the first crew ever propelled into orbit by a rocket booster recycled from a previous spaceflight. The company’s Crew Dragon capsule Endeavour, also making its second flight, streaked into the darkened pre-dawn sky atop a SpaceX Falcon 9 rocket as its nine Merlin engines roared to life at 5:49 a.m. (0949 GMT) from NASA’s Kennedy Space Center in Florida. The blastoff on Cape Canaveral was aired live on NASA TV. The crew is due to arrive at the space station, orbiting some 250 miles (400 km) above Earth, early on Saturday following a flight of about 23 hours. On the way they will have time to dine on pre-packaged meals and snacks and to get some sleep. Within 10 minutes of launch, the rocket’s second stage had …