Crew-12 is officially in quarantine as NASA closes in on the next SpaceX launch to the International Space Station. Credit: SpaceX The four astronauts assigned to NASA's SpaceX Crew-12 mission have entered a standard two-week quarantine at NASA's Johnson Space Center in Houston. The isolation period began Wednesday and is designed to protect the crew's health as they prepare for their upcoming trip to the International Space Station. The Crew-12 astronauts entered quarantine on January 28 at