Live coverage: SpaceX supply ship returns to Earth

Leaving six crewmates behind in orbit, a Russian commander, his NASA co-pilot and a first-time flier from the United Arab Emirates undocked from the International Space Station early Thursday, executed a fiery plunge back to Earth and landed safely on the steppe of Kazakhstan.

Five-and-a-half years ago, SpaceX founder Elon Musk revealed SpaceX’s Crew Dragon spacecraft, a sleek-looking human-rated spaceship with 3D-printed engines, a roomy stylized interior and touchscreen controls. Now SpaceX’s first ship to ferry astronauts — with numerous design changes introduced since 2014 — is about to leave the company’s factory for final testing before launching early next year.

NASA is working with the Russian space agency to potentially extend crew stays on the International Space Station, the agency’s acting administrator said last week, as a cushion against expected delays in the development of commercial crew capsules by Boeing and SpaceX.