Escucha música y podcasts GRATIS en Amazon Music. Sin necesidad de suscripción.Escucha gratis 456Dawn of the Milky Way's Cosmic Halo
789Oldest Known Evidence for Dark Energy
10Dark Energy Exceeds Gravity
111213Milky Way Becomes a Spiral Galaxy
141516The Formation of Proxima Centauri
17 ℗© 2017 Chris Held