For thousands of years, we thought the stars were a fixed map, eternal and unchanging. We were wrong. Today, we know the truth is much more restless: galaxies are racing away from us at incredible speeds, and some have already vanished forever. Join us as we explore the "Great Escape" of the cosmos, from Einstein’s biggest mistake to the invisible force stretching the very fabric of reality. Where is it all heading, and what happens when the sky goes dark?