TIL about the Breakthrough Starshot project, which proposed sending gram-sized robots to the nearest star system Alpha Centauri by using a massive Earth-based laser array to accelerate tiny light sails to about 20% the speed of light. The probes could theoretically reach Alpha Centauri in 20 years.

TIL about the Breakthrough Starshot project, which proposed sending gram-sized robots to the nearest star system Alpha Centauri by using a massive Earth-based laser array to accelerate tiny light sails to about 20% the speed of light. The probes could theoretically reach Alpha Centauri in 20 years.