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What If Alien Life Were Silicon-Based?

PBS Space Time · explainer · Watch on YouTube

ChemistryCosmology & astrophysicsBiology & biotechnology

What it is

PBS Space Time considers whether life could be based on silicon instead of carbon, comparing the two elements' chemistry and why silicon is the most plausible alternative.

Why Hacker News recommends it

Recommended as a solid, informative treatment of silicon-based life and the chemical limits on alien biochemistry.

  • 1 people recommended it
  • 1 different months
  • 0 strong recommendations
  • first 2023, last 2025

What HN commenters said

  1. “PBS Space Time has a very good & informative episode covering this.”

    Why silicon is the next likeliest basis for alien life.

    ziddoap, 2025-01 · Recommendation · in “IAC confirms existence of a Super-earth in the habitable zone of a Sun-like Star”

Excerpts from Hacker News comments, linked to the originals. Summaries and labels were written by a language model from those comments.

Topics: silicon life, astrobiology, chemistry, carbon, pbs space time

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