<ul><li>A recent study suggests that a distant supernova explosion may have caused significant changes in viruses infecting fish in Africa's Lake Tanganyika.</li><li>Researchers believe that the explosion exposed the viruses to high levels of cosmic radiation, leading to the evolution of new virus species.</li><li>The study found traces of the radioactive element iron-60, dating back to a supernova occurrence about 2.5 million years ago.</li><li>The research provides new evidence that cosmic events can have unexpected effects on life on Earth, and highlights the need to explore the connections between space and life further.</li></ul>

How a distant supernova may have changed viruses on Earth

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