The journalist's title is a bit misleading, Duplay doesn't suggest to ride the laser to Mars, but use a thermal laser propulsion shuttle as a slingshot, releasi

The journalist's title is a bit misleading, Duplay doesn't suggest to ride the laser to Mars, but use a thermal laser propulsion shuttle as a slingshot, releasing the accelerated payload after less than half an hour of acceleration, then while in range of the laser, do a 180°, rotate the mirror to face earth, and use the laser power to slow down the empty shuttle for the next slingshot mission