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July 28, 2025 39 mins

Astrophysicist Dr. Jonathan McDowell explains how the ever-growing problem of space junk is threatening satellites, science missions, and even spaceflight as we know it.


In this episode, Jonathan discusses orbital debris, anti-satellite missiles, clean-up efforts, and how one incident could cause a communication blackout for decades. In the lawless realm of low Earth orbit, we could see a future where space exploration comes to a halt altogether. However, some companies are testing solutions that aim to alleviate the problem before it's too late. There is a lot to learn!


Resources:

Chapters:

  • (00:00) - Intro
  • (01:32) - Space Junk Overview
  • (05:11) - Small Debris Damage
  • (07:54) - Aerospace Beginnings
  • (09:37) - Tracking Launches
  • (11:39) - Dodging Debris
  • (15:21) - Anti-Satellite Missiles
  • (20:36) - Space Air Traffic Control
  • (23:27) - Safer Altitudes
  • (24:47) - The End of the ISS
  • (29:17) - How Space Junk is Blocking Research
  • (31:52) - Billboards in Space
  • (33:47) - Satellite Designs
  • (35:05) - Cleaning Up
  • (36:07) - Jonathan's Advice
  • (38:14) - Outro

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