Elon Musk said he had initially given SpaceX less than a 10 percent chance of succeeding. His rocket company has come a long way.

© Andres Kudacki for The New York Times

Four astronauts got orders from NASA to enter their Crew Dragon spacecraft docked to the station and don their spacesuits in case the air leak warrants an emergency evacuation

Four astronauts got orders from NASA to enter their Crew Dragon spacecraft docked to the station and don their spacesuits in case the air leak warrants an emergency evacuation