Dallas 12-Year-Old Achieves Nuclear Fusion, Potentially Setting a New World Record
DALLAS, Texas — At just 12 years old, Aiden McMillan has accomplished what many seasoned scientists strive for: achieving nuclear fusion. The seventh-grader from the Dallas Independent School District began his ambitious project at the tender age of 8, dedicating the first two years to mastering the complex principles of nuclear physics before constructing his initial prototypes. His determination and meticulous approach have now brought him to a milestone that could earn him the title of the youngest person to successfully achieve nuclear fusion.
McMillan’s journey was not without its challenges, particularly on the home front. His mother expressed understandable concern about the safety of his experiments. “There were some alarm bells with my mom, yes, she was like, ‘Whoa, whoa, whoa, take a step back, tell me exactly what could go wrong, and how it could go wrong and make sure it doesn’t go wrong,’” McMillan recounted in an interview with NBC DFW. This cautious oversight ensured that Aiden’s work proceeded responsibly, balancing his enthusiasm with safety.
The culmination of his efforts was confirmed when McMillan detected the presence of neutrons, a definitive sign that nuclear fusion had been achieved. “We got neutrons, yeah,” he said emotionally. “Kind of tearing up about it cause it was like, hard to describe. It was like the end of a long, long journey.”
Should Guinness World Records validate his claim, McMillan will surpass the current record holder, Jackson Oswalt from Tennessee, who achieved nuclear fusion just hours before his 13th birthday in 2018. This feat places Aiden among a rarefied group of young nuclear fusion enthusiasts who have pushed the boundaries of what is possible outside professional laboratories.
Nuclear fusion, the process that powers the sun, involves combining atomic nuclei to release vast amounts of energy. It has long been considered the “holy grail” of clean energy, promising a virtually limitless and environmentally friendly power source. While large-scale fusion reactors remain under development by organizations such as the Department of Energy and international collaborations like ITER, Aiden’s achievement underscores the growing accessibility of advanced scientific experimentation.
His success also highlights the importance of STEM education and the potential for young minds to contribute meaningfully to scientific progress. The National Science Foundation has long advocated for nurturing early interest in science and technology, recognizing that today’s students are tomorrow’s innovators.
As McMillan awaits official recognition, his story has already inspired educators and students alike. It serves as a reminder that with curiosity, dedication, and proper guidance, even the most complex scientific challenges can be approached by the youngest among us. The journey from an 8-year-old’s curiosity to a 12-year-old’s breakthrough is a testament to perseverance and the spirit of discovery.
For more information on nuclear fusion and ongoing research, visit the U.S. Department of Energy Office of Science and the NASA’s overview of nuclear fusion.

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