CAPE CANAVERAL, Fla.—A billionaire’s private SpaceX flight filled its two remaining seats Tuesday with a scientist-teacher and a data engineer whose college friend actually won a spot but gave him the prize.
The new passengers: Sian Proctor, a community college educator in Tempe, Arizona, and Chris Sembroski, a former Air Force missileman from Everett, Washington. They will join flight sponsor Jared Isaacman and another passenger for three days in orbit this fall.
