SpaceX Dragon capsule delivers docking port to ISS
SpaceX has successfully delivered a new docking port to the International Space Station.
The Dragon capsule arrived on Wednesday morning, bringing supplies including food and a new DNA decoder for high-flying genetic research.
But crucial to the mission was the safe delivery of the docking port needed for future rocket ships.
SpaceX is working on a crew-worthy Dragon, while Boeing is developing a capsule for astronauts named Starliner, and both will need the new port to successfully get crews on to the ISS.
SpaceX launched the Dragon capsule from Cape Canaveral, Florida, on Monday.
A year earlier, the first of these new docking rings was destroyed in a SpaceX launch accident.
The two US space station residents used a robot arm to capture the Dragon 250 miles up.