Panspermia: Mechanisms, Survivability, and the Debate on Life Spreading Across Space
To the point
Panspermia is the idea that life or its building blocks can travel through space to seed life on other worlds, via rocks ejected by impacts, light-driven transport, or deliberate seeding by an advanced civilization, a lineage of ideas linked to Anaxagoras, Kelvin, Arrhenius, Crick, and Sagan, though no confirmed extraterrestrial life exists and it does not explain the origin of life.
