The World – Earth’s First Nuclear Reactor Is 1.7 Billion Years Old And Was Made Naturally
Earth’s First Nuclear Reactor Is 1.7 Billion Years Old And Was Made Naturally If you were hunting for alien intelligence, looking for a surefire signature from across the Universe of their activity, you’d have a few options. You could look for an intelligent radio broadcast, like the type humans began emitting in the 20th century. … Read more