SpaceX to launch new NASA crew on retiring Dragon craft

SpaceX is set to send four astronauts to the International Space Station on Thursday aboard a Dragon spacecraft that is being retired. The launch comes amid questions about the future of the company's human spaceflight program.

• SpaceX will launch four astronauts to the ISS on Thursday
• The flight uses a Dragon craft that is being retired
• The future of SpaceX's human spaceflight program remains unclear