Software Glitch That Pointed Solar Panels Away From the Sun Killed $72 Million Lunar Mission in a Single Day

A $72 million NASA lunar mission was destroyed in a single day by what may be one of the most absurd software bugs in spaceflight history: the code that was supposed to point the spacecraft's solar panels toward the Sun instead pointed them 180 degrees in the wrong direction. Lunar Trailblazer, designed to map water ice on the Moon's surface, lost all power within hours of deployment as its batteries drained without sunlight to recharge them. The spacecraft was declared a total loss. The incident is a sobering reminder that even the most advanced engineering programs can be undone by the simplest errors — and that the margin between success and failure in space is measured in lines of code. The loss is particularly painful given NASA's ambitious Artemis program and the growing international race to exploit lunar resources, as the very instrument designed to find the Moon's water will never reach its destination.