100,000 Years of Cosmic Fire: How a Supernova May Have Sparked an Evolutionary Leap on Earth
100,000 Years of Cosmic Fire: How a Supernova May Have Sparked an Evolutionary Leap on Earth Introduction Around 2.5 to 8 million years ago , a massive supernova explosion occurred relatively close to Earth, bombarding our planet with cosmic radiation for nearly 100,000 years . Scientists believe this event may have accelerated evolutionary changes , influencing early human ancestors and shaping the planet’s environment. This discovery challenges our understanding of how external cosmic events can impact Earth’s biological and climatic history. What is a Supernova and How Did it Affect Earth? A supernova is the violent explosion of a massive star , releasing an immense amount of energy and radiation. When a star reaches the end of its life cycle, it undergoes a sudden collapse, leading to a cosmic explosion that sends high-energy particles across space. Scientists believe that a supernova explosion in our cosmic neighborhood bombarded Earth with cosmic rays for nearly 100,000 years...
