The galaxy is an immense and mysterious place we may one day explore and settle, but for now, we have only one planet, and the galaxy holds many dangers, so what can we do to defend Earth?

Start Forging New Worlds: https://www.worldanvil.com/isaac-arthur

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:

Defending Earth

Episode 442; April 11, 2024

Produced, Written & Narrated by: Isaac Arthur

Editors:

Jon Dagle

Rod Pyle

Dale Skran

See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.