Cosmology2026-01-131 minarXiv:2601.08943expressDark Energy as a Spring: A Model with No TuningIn the late 1990s, Saul Perlmutter, Adam Riess, and Brian Schmidt observed supernovae and found: the universe is expanding faster and faster.Axel de la Macorra·Jose Agustin Lozano TorresFriedmann equationsAlan GuthAlexander FriedmannAndrei Lindedark energycosmological constantdark matterquintessenceexpansion of the universe👍👎☆SimplePopularAdvanced