Ex-SpaceX Engineer Bets On Solar Power To Revolutionise Space Travel
Published on: April 15, 2026, 4:38 p.m. | Source: NDTV.com
Former SpaceX engineer Jeff Thornburg has raised 50 million dollars for his startup Portal Space Systems, aiming to revive NASA's solar thermal propulsion concept and develop faster, more efficient engines for the next generation of spacecraft.
