On February 26, 2025, a NASA probe called Lunar Trailblazer lifted off from Kennedy Space Center in Florida. Its mission was to map the water on the moon. But a day after launch, mission managers lost contact with the spacecraft, and it was never heard from again.
One year later, NPR has learned exactly why the $72 million dollar mission failed.
A report by a review panel convened by NASA to explore what went wrong contains the explanation. Software that was supposed to point the spacecraft solar panels toward the sun instead pointed them 180 degrees away from the sun.
In addition, the panel found "many erroneous on-board fault management actions" that, taken together with the solar panel pointing error, "caused the Lunar Trailblazer failure."
NASA provided the report in response to a Freedom of Information Act request.
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