Several small spacecraft with solar sails project Breakthrough Starshot. Some solar energy will provide a push on the sails but the main push is from powerful g

Several small spacecraft with solar sails project Breakthrough Starshot. Some solar energy will provide a push on the sails but the main push is from powerful ground-based lasers since solar energy alone isn't enough energy. At 20% speed of light (c) or about 60,000 kilometres per second it will take 20 years to get there. Then 4 years for the radio signals to get back. I may see some pictures of Alpha Centauri in my lifetime if they get this project going soon.