Defending Earth

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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?

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Credits:
Defending Earth
Episode 442; April 11, 2024
Produced, Written & Narrated by: Isaac Arthur

Editors:
Jon Dagle
Rod Pyle
Dale Skran

Graphics:
Jeremy Jozwik
Ken York
Mihail Yordanov
Sergio Botero

Music Courtesy of
Epidemic Sound
Stellardrone, "Red Giant", "Ultra Deep Field"
Sergey Cheremisinov, "Labyrinth", "Forgotten Stars"
Taras Harkavyi, "Alpha and ..."
Miguel Johnson, "So Many Stars"

00:00 Intro
3:43 Development & Detection
6:04 Asteroids
16:30 Rogue Spaceship
19:12 Orbital Bombardment
21:05 Solar Flares & Coronal Mass Ejections
23:18 Supernova & GRB shield
27:47 Rogue Planet
30:20 Ejected Black hole
32:56 Von Neumann swarm
35:22 RKMs & Nicoll Dyson Beams
36:35 Alien Armada

Correction: 28:46 10,000 squared = 100 Million, not 10 million.