Yuri Milner

As early as the 2040s, billionaire Yuri Milner plans to propel thousands of miniature satellites at 20% the speed of light by aiming minutes-long 100-gigawatt laser pulses at light sails. They will be set to arrive at Proxima B, the nearest Earthlike planet in the Goldilocks Zone of Alpha Centauri, by the 2060s.