Physicists have achieved a major breakthrough in exploring the inner structure of atomic nuclei using a new molecule-based method. According to Wilkins, when scientists measured electron energies with great precision, the results did not match predictions based on interactions occurring only outside the nucleus. This discrepancy revealed that electrons were also interacting inside the nucleus — providing direct evidence that the technique allows researchers to probe its interior. Garcia Ruiz compared the achievement to measuring a battery’s electric field not just from the outside, but from within — an extremely difficult task that has now become possible in atomic physics. With this method, scientists can effectively “see” inside the nucleus, offering new insights into the fundamental forces that govern matter. Looking ahead, the research team plans to use this approach to map the internal distribution of forces within the nucleus. Their current experiments involve molecul...