458-Million-Year-Old Twin Impact Craters Found in Sweden

A team of scientists from the University of Gothenburg, Sweden, has found traces of two meteorite impacts in the Swedish county of Jämtland, a twin strike that occurred 458 million years ago (Ordovician period). Prof Erik Sturkell from the University of Gothenburg’s Department of Earth Sciences and his colleagues found one of the craters 12 [...] —> Read More