A recent study details a massive galactic collision, nicknamed the “Low-energy-Kraken-Heracles” merger, that occurred approximately 12 billion years ago. This event is believed to be one of the most important in the Milky Way’s history, significantly contributing to its formation. Researchers suggest this clash involved a smaller galaxy, now referred to as "Kraken," impacting the early Milky Way. The merger was less energetic than previously theorized galactic collisions, hence the "low-energy" descriptor. Analyzing stellar streams provides evidence supporting this ancient interaction. Understanding these early mergers is crucial to unraveling the complex evolution of our galaxy and its structure. This discovery sheds new light on the building blocks of the Milky Way.