Video: Atlas 5 rocket launches space station cargo mission

The Falcon 9 booster assigned to launch two NASA astronauts on an orbital test flight of SpaceX’s Crew Dragon capsule has been test-fired in Texas, but the schedule for the long-awaited mission remains unclear.

The walkway astronauts will use to board SpaceX’s Crew Dragon capsule before missions to the International Space Station was added to historic launch pad 39A on Monday.

A European Vega launcher failed Wednesday night around two minutes after liftoff from French Guiana and fell into the Atlantic Ocean, destroying an Airbus-built surveillance satellite for the United Arab Emirates.