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# Your DNA's Codes Are (Probably) From Outer Space
- URL: https://www.cascadepbs.org/show/pbs-space-time/episode/your-dnas-codes-are-probably-from-outer-space-s2bndq/
- Published: 2025-03-10T17:15:54.000Z
- Updated: 2025-08-21T13:47:26.000Z
- Description: Did you know that many of us have up to 4% neanderthal DNA?
- Author: Cascade PBS Staff
- Tags: PBS Space Time, Season 10, Episode 36, #ZZZ_Episode_f7893b53-5346-448b-84c5-fe05ebcacf93, #episode, #ZZZ_Show_ae70f836-13b6-4c9d-b61f-99f7b8bc29eb, #v1.16

Did you know that many of us have up to 4% neanderthal DNA? And that 100% of your DNA may come from outer space? No joke. The biochemistry that defined the coding system of your DNA may have happened off-world, and perhaps even long before Earth existed.