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Life On Other Planets

I watched a documentary on the prospects of life on other planets. There was a lot of discussion about what are the necessary conditions for life. At first I was skeptical but after some thought I think I largely agree.

I took some notes during the video:

Stable System

  • Stable star (i.e. no large bursts/castoffs)
  • Stable and somewhat slow orbit
  • Post bombardment

Comfortable Environment

  • The right temperature range
  • The right atmospheric pressure
  • Low radioactivity

Constituents of Life

  • A liquid (e.g. water although not necessarily)
  • Organic Material (e.g. carbon, oxygen)
  • Larger elements (e.g. metals)

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