https://russian.lifeboat.com/blog/2020/10/technical-video-of-dfd-engine-princeton-satellite-meet-the-direct-fusion-drive-a-unique-propulsion-system-and-power-plant-rolled-into-one-for-deep-space-missions Safeguarding Humanity Mon, 19 Oct 2020 16:24:42 +0000 hourly 1 https://wordpress.org/?v=5.5.3