>[!abstract] >Panspermia (from Ancient Greek *pan* 'all' and *sperma* 'seed') is the hypothesis that life exists throughout the universe, distributed by space dust, meteoroids, asteroids, comets, and planetoids, as well as by spacecraft carrying unintended contamination by microorganisms, known as directed panspermia. The theory argues that life did not originate on Earth, but instead evolved somewhere else and seeded life as we know it (Wikipedia, 2025). >[!references] References >- [[Kurzgesagt, 2023]]: A video about the possibility of widespread life in the early Goldilocks universe, 10–17M years after the Big Bang, when the average ambient temperature of the universe was 0–100ºC, allowing water to exist in a liquid state virtually everywhere. >[!related] >- **North** (upstream): — >- **West** (similar): [[PAH hypothesis]] >- **East** (different): [[Abiogenesis]] >- **South** (downstream): —