On November 14, 1969, a light rain fell over Cape Canaveral as the Apollo 12 spacecraft launched toward the Moon. Just thirty-six seconds after liftoff, a sudden flash struck the rocket, causing the dashboard inside the cabin to light up with warning signals. Fifteen seconds later, a second flash occurred. Although the spacecraft continued its ascent, both the crew and mission control in Houston were thrown into confusion. The fuel cells, which provided power and oxygen, disconnected unexpectedly. The spacecraft's navigation system lost its reference points, and the data being sent back to Earth became difficult to interpret. The cause of the flashes was later identified as the rocket passing through an electrically charged atmosphere. This created a conductive path between the ground and the clouds, triggering lightning. This scenario had not been considered before this flight, as previous efforts had focused on avoiding active storms rather than recognizing the risks posed by an overcast and humid sky without visible lightning. In mission control, a young electrical systems controller noticed a pattern in the error data that matched a previous ground test. During that test, a power sensor had malfunctioned under certain electrical conditions, sending confusing values without causing actual damage to the spacecraft systems. Recognizing this, the controller suggested switching an auxiliary secondary switch, which would bypass the malfunctioning sensor and allow the system to measure data in a different way. The crew followed the instruction, activating the switch and restoring the readability of the telemetry data. The fuel cells were reconnected, the navigation system was realigned once the spacecraft reached orbit, and Apollo 12 continued its journey to the Moon. This incident prompted NASA to revise its launch procedures, prohibiting launches under conditions that could lead to lightning formation. The presence of clouds capable of generating a significant electric field became a reason to delay launches, ensuring that future missions would not face similar issues related to lightning.