After their weeklong journey turned into a monthslong stay on the International Space Station, two Boeing Starliner astronauts will soon be united with the spacecraft that will eventually bring them home.

It's SpaceX to the rescue after NASA officials made a tough safety call to send Boeing's Starliner spaceship back to Earth without its two astronauts.

The capsule rocketed into orbit to fetch the test pilots whose Boeing spacecraft returned to Earth empty earlier this month because of safety concerns