We all know the universe is expanding. But what if that expansion... never stops? What if it accelerates until it destroys everything? This is the Big Rip hypothesis. It is a theory about the ultimate fate of the cosmos, driven by a mysterious force called "phantom dark energy." In this scenario, dark energy would become so powerful that it would overwhelm all other forces. First, it would push galaxies apart, leaving our Milky Way isolated in an endless void. Then, the force would become strong