From cosmic rays to solar storms, space travel is a radiation gauntlet—but water may be the simplest, smartest solution. Discover how future starships might turn their life-support systems into life-saving armor.
Get Nebula using my link for 50% off an annual subscription: https://go.nebula.tv/isaacarthur
Watch my exclusive video Nearby Supernovae: https://nebula.tv/videos/isaacarthur-nearby-supernovae-could-one-destroy-earth-and-could-we-stop-it
Check out Gods & Monsters: https://nebula.tv/curiousarchive/gods-and-monsters?ref=isaacarthur
🛒 SFIA Merchandise: https://isaac-arthur-shop.fourthwall.com/
🌐 Visit our Website: http://www.isaacarthur.net
❤️ 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 Community: https://www.reddit.com/r/IsaacArthur/
🐦 Follow on Twitter / X: https://twitter.com/Isaac_A_Arthur
💬 SFIA Discord Server: https://discord.gg/53GAShE
Credits:
Fishbowl Starships Water As Shielding
Episode 721; June 1, 2025; Nebula Exclusive
Written, Produced, & Narrated by: Isaac Arthur
Graphics: Bryan Versteeg, Jeremy Jozwik, Udo Schroeter
Select imagery/video supplied by Getty Images
Music Courtesy of Epidemic Sound http://epidemicsound.com/creator
Taras Harkavyi, "Alpha and..."
Chris Zabriskie, "Unfoldment, Revealment", "A New Day in a New Sector"
"Oxygen Garden", "Wonder Cycle"
Stellardrone, "Red Giant", "Billions and Billions"
See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.