Iron-60 is formed during supernova explosions and traces of it can be found in the lunar soil. Until now, this isotope has been difficult to detect due to its small amount and interference from other elements.
Scientists from the China Atomic Energy Institute developed the accelerator mass spectrometry method and were able to detect iron-60 with unprecedented sensitivity. This will allow scientists to study the history and evolution of stars by tracking the signatures of supernova explosions. In the future, scientists plan to further increase the sensitivity of the method to look even deeper into the history of space.
Source: Ferra
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