NASA Chief: "We Just Built Antigravity Propulsion " [video](youtube.com)4 points·by chadpaulson·vor 3 Monaten·0 commentsyoutube.comNASA Chief: "We Just Built Antigravity Propulsion " [video]https://www.youtube.com/watch?v=mOWwdIuyaQA0 commentsPost comment—