Supernova <2025-2027>

Beyond their visual spectacle, supernovas are essential to the evolution of the cosmos: What Is a Supernova? | NASA Space Place

This happens to massive stars—at least five to eight times the mass of our Sun. As the star runs out of nuclear fuel, its core becomes unstable. Gravity eventually wins the "tug-of-war" against outward pressure, causing the core to collapse in milliseconds. The outer layers then rebound off the dense core and explode outward into space. Scientific Significance

While there are several sub-categories, astronomers generally classify supernovas into two primary types based on what triggers the final collapse:

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