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June 19, 2023 6 mins
Adam Frank - Why Oxygen Isn’t Needed To Make Things Burn

Oxygen isn't strictly necessary for combustion, but it is ideal. Any advanced (alien) civilization probably uses oxygen to burn things.

Key Takeaways
  • Would combustion always be a potential energy source on any planet capable of incubating a technological civilization? That simple question has led to an examination of an essential chemical process.
  • Combustion reactions transfer electrons from a fuel to an oxidizer. But there are a number of elements capable of being the oxidizer. So does our hypothetical planet really need oxygen itself?
  • Oxygen is indeed the perfect element for carrying out combustion, and for a very good reason.
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