Consider This: A Massachusetts company leads as the race for fusion energy heats up

Some of the same billionaires who pioneered the commercialization of space are now using their fortunes to fund companies to create the energy source of the stars on earth. And a new round of funding is sending MIT spin-off Commonwealth Fusion Systems into orbit.

Consider This cohost Arun Rath speaks with WBUR senior correspondent Bruce Gellerman, who has been reporting on the effort.