In June, Boeing’s Starliner spacecraft successfully docked at the International Space Station. But issues with its propulsion system have called into question its safety. Now, NASA is weighing alternatives to bring the astronauts home. WSJ’s Micah Maidenberg shares how the Starliner program has faced a bevy of problems and what it means for Boeing. Further Reading: - Boeing Sent Two Astronauts Into Space. Now It Needs to Get Them Home.  - NASA Says Starliner Astronauts Could Return With SpaceX—Next Year  - Two Astronauts Are Stuck in Space. Here’s How They’re Passing the Time.  Further Listening: - Elon Musk’s Unusual Relationships With Women at SpaceX  - The New Race to the Moon  Learn more about your ad choices. Visit megaphone.fm/adchoices