They create the technology to make a ship that will reach Alfa Centauri in just 20 years

‘Warp drives’, fusion engines, plasma... the future of interstellar exploration is full of engines that promise fantastic speeds, but only one of them is feasible in the near future A team of researchers has developed a nanometric manufacturing technology that could reduce laser candle production from 15 years to a single day, key structures to propel interstellar craft to 20% of the speed of light.