Isaacman has a contract worth tens of millions of dollars, or more, with Elon Musk ’s spaceflight and satellite company, SpaceX. Isaacman, a pilot and commercial astronaut, has traveled to space twice on SpaceX spacecraft. The Senate Commerce Committee has not yet scheduled a hearing on Isaacman’s nomination.

Spinning bright red handkerchiefs and dancing in step to folk music, more than a dozen human-like robots took to China’s biggest stage in January, making a splashy debut at the annual Lunar New Year gala.