Seats filled for first all-civilian spaceflight crew

Jared Isaacman, Hayley Arceneaux, Sian Proctor and Chris Sembroski pose for a photo at NASA's Kennedy Space Center at Cape Canaveral, Florida, U.S., March 29, 2021 in this handout image provided by SpaceX. Picture taken March 29, 2021. Inspiration 4/Handout via REUTERS

(Reuters) - A college science professor and an aerospace data analyst were named on Tuesday to round out a four-member crew for a SpaceX launch into orbit planned later this year billed as the first all-civilian spaceflight in history.

The two latest citizen astronauts were introduced at a news briefing livestreamed from the Kennedy Space Center in Florida by SpaceX human spaceflight chief Benji Reed and billionaire entrepreneur Jared Isaacman, who conceived the mission in part as a charity drive.