Laser Propulsion Can Get a Probe to Mars in 3 Days, Scientists Say

Photonic propulsion could get a 100 kg object to Mars in 3 days—a spaceship in a month—and we already have the technology to build it, scientists say.

Scientists from the University of California, Santa Barbara, are proposing a road map to building laser arrays in orbit capable of launching probes to nearest star systems and spacecraft-sized loads to our nearest planets.