The proposed journey, which was revealed by scientists with NASA’s Jet Propulsion Laboratory at the 2017 Geophysical Union Conference and reported by New Scientist, was born out of a budget mandate to make progress on interstellar travel. Now, NASA is working on technology that, if all goes as planned, could allow a spacecraft to reach ten percent of light speed, and the goal is to have it ready by 2069 with Alpha Centauri in its sights. ... The system is around 4.3 light years from Earth, which essentially makes it a next-door neighbor. If NASA succeeds at achieving ten percent...