Video: Change of command aboard International Space Station

NASA Administrator Jim Bridenstine said this week the space agency is not unduly delaying the debut of new SpaceX and Boeing commercial crew capsules as engineers gear up for a challenging rapid-fire sequence of test flights in the next few months, all against the backdrop of in-depth safety reviews before clearing the privately-owned ships to carry astronauts.

A SpaceX Dragon capsule packed with more than 5,000 pounds of hardware, provisions and experiments launched July 25 from Cape Canaveral and arrived at the International Space Station two days later.

The composite structure of Sierra Nevada Corp.’s first space-rated Dream Chaser space plane has arrived at the company’s Colorado factory for integration with computers, a heat shield and mechanical systems before launch to the International Space Station in late 2021.