We just need to build a station in the neighborhood: https://www.technologyreview.com/s/613127/a-halo-drive-could-accelerate-interstellar-spacecraft-to-close-to

We just need to build a station in the neighborhood: https://www.technologyreview.com/s/613127/a-halo-drive-could-accelerate-interstellar-spacecraft-to-close-to-the-speed-of-light/ https://www.technologyreview.com/s/613127/a-halo-drive-could...