Galakseevolusjon
Galakseevolusjon is a term used primarily in astrophysical and evolutionary biology circles to describe the process by which celestial bodies within a galaxy influence the evolutionary trajectories of lifeforms found on nearby planets. The concept arose in the late 21st century as observational data from exoplanetary surveys revealed patterns suggesting that the chemical enrichment and gravitational dynamics of a galaxy could play a role in shaping the development of complex life. Researchers compare galakseevolusjon to classical planet‑centric evolution theories by adding a galactic context to environmental pressures, such as exposure to high-energy cosmic radiation, variations in metallicity, and the incidence of supernovae.
Key studies have modeled the Milky Way's spiral arm passages and examined their correlation with mass extinctions