The Fermi Paradox: Galactic Habitable Zones
Science & Futurism with Isaac Arthur
00:00
The Origins of Life in the Galactic Bulge
The reason a star might be alone is that it got perturbed away from where it formed, which often rips planets away in the process. Stars which have low metallicity are what we call population 2 stars and you get all very common in the galactic bulge near the center. Population 2 stars are generally older stars that they can be relatively new, even a billion years old. So on the one hand these stars when old would have more time for life to evolve but also be less likely to have planets for life to merge on. Ironically any examples of first life which might include us are likely to be from places that are atypical so it is entirely possible the first civilization to
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