Comments on: Planetary Defense: Physicists Propose New Way To Defend Earth Against Cosmic Impacts https://lifeboat.com/blog/2021/10/planetary-defense-physicists-propose-new-way-to-defend-earth-against-cosmic-impacts Safeguarding Humanity Mon, 18 Oct 2021 04:23:04 +0000 hourly 1 https://wordpress.org/?v=6.6.1