Antarctic Ice Reveals Radioactive Traces from Interstellar Cloud
Recent scientific studies have uncovered that Antarctic ice contains traces of iron-60, a rare radioactive isotope, which is believed to originate from the Local Interstellar Cloud. This discovery was made by a team led by Dominik Koll from the Australian National University, who analyzed approximately 500 kilograms of fresh Antarctic snow. The presence of iron-60, typically produced during supernova explosions, suggests that Earth is currently passing through this interstellar cloud. The findings, published in Physical Review Letters, indicate that the isotope has been preserved in Antarctic snow for the past 80,000 years. The research involved complex chemical processing and the use of a particle accelerator to isolate and identify the isotope among trillions of other particles. 
