Video: Soyuz MS-01 leaves the space station for landing

The astronauts assigned to fly SpaceX’s Crew Dragon spacecraft beginning later this year said Friday they are excited for the capsule’s first orbital mission set for launch Saturday, but significant work remains before the ship is cleared to carry people.

Track the major milestones of Monday’s launch of a Falcon 9 rocket from Cape Canaveral with a Dragon cargo craft heading for the International Space Station.

Two astronauts floated outside the International Space Station early Tuesday and replaced one of the grapple fixtures on the end of the lab’s robot arm, the first of two excursions over the next week to complete a complex overhaul that began with a pair of spacewalks last October.