Orbital Defense Platforms

In science fiction we often see immense starships attacking planets, crushing or besieging them, but in our own future we may deploy powerful orbital fortresses to defend our world. Watch my exclusive video The Fermi Paradox Hermit Shoplifter Hypothesis: https://nebula.tv/videos/isaacarthur-the-fermi-paradox-hermit-shoplifter-hypothesis Get Nebula using my link for 40% off an annual subscription: https://go.nebula.tv/isaacarthur Get a Lifetime Membership to Nebula for only $300: https://go.nebula.tv/lifetime?ref=isaacarthur Join this channel to get access to perks: https://www.youtube.com/channel/UCZFipeZtQM5CKUjx6grh54g/join Visit our Website: http://www.isaacarthur.net Join Nebula: https://go.nebula.tv/isaacarthur Support us on Patreon: https://www.patreon.com/IsaacArthur Support us on Subscribestar: https://www.subscribestar.com/isaac-arthur Facebook Group: https://www.facebook.com/groups/1583992725237264/ Reddit: https://www.reddit.com/r/IsaacArthur/ Twitter: https://twitter.com/Isaac_A_Arthur on Twitter and RT our future content. SFIA Discord Server: https://discord.gg/53GAShE Credits: Orbital Defense Platforms Episode 423b; December 3, 2023 Produced, Written & Narrated by: Isaac Arthur Graphics: Fishy Tree Jarred Eagley Jeremy Jozwik Ken York/YD Visual Legiontech Studios Rapid Thrash Sergio Botero SpaceResourcesCGI Udo Schroeter Music Courtesy of: Epidemic Sound http://epidemicsound.com/creator Stellardrone, "Red Giant", "Ultra Deep Field" Sergey Cheremisinov, "Labyrinth", "Forgotten Stars" Taras Harkavyi, "Alpha and ..." Miguel Johnson, "So Many Stars"