The longevity of Voyager 2, a spacecraft that has been in operation for nearly 50 years, is a testament to the ingenuity of human engineering. However, the recent 'Big Bang' power-system swap highlights the delicate balance between power and thermal management in space exploration. This operation, which involved rearranging the spacecraft's power and thermal systems, freed almost 10 watts and postponed the need to shut down another science instrument. The key to this success lay in the careful coordination of power and thermal management, ensuring that the spacecraft's critical components remained operational. The 'Big Bang' was not a single magical switch or an instantaneous repair, but a carefully planned sequence of events that moved from one stable thermal and electrical state to another without lingering in an unsafe condition. The operation preserved all three of Voyager 2's active science instruments, allowing it to continue measuring the local magnetic field, plasma density,