A SpaceX webcast of the launch showed Isaacman, 38, and his crewmates - Sian Proctor, 51, Hayley Arceneaux, 29, and Chris Sembroski, 42 - strapped into the pressurized cabin of their gleaming white SpaceX Crew Dragon capsule, dubbed Resilience, wearing their helmeted black-and-white flight suits.

Thumbs-up were on display as the capsule streaked into the Florida sky perched atop one of the company's reusable two-stage Falcon 9 rockets. The Crew Dragon, fitted with a special observation dome in place of its usual docking hatch, reached orbit almost 10 minutes after the 8:03 p.m. EDT blastoff.