Live coverage: Three-man crew closes out 173-day space mission

Take an aerial 4K video tour of the Crew Dragon atop the Falcon 9 rocket on launch pad 39A at the Kennedy Space Center during earlier pre-launch testing.

Engineers from Boeing and a team of subcontractors have finished building the first pair of six new solar arrays to bolster the International Space Station’s aging electrical system ahead of their launch to the orbiting outpost as soon as May aboard SpaceX’s next Cargo Dragon mission.

The threat from Hurricane Nicole churning toward a tracking station in Bermuda will keep Orbital ATK’s Antares rocket from launching on a space station cargo run until at least Sunday, officials said Tuesday.