The study found that the Earth’s magnetic field experienced a phase of drastic weakening that lasted for 26 million years. It occurred during the Ediacaran period. At that time, a large amount ...

University of Rochester researchers studied Earth’s magnetic field during the transformative Ediacaran Period, which spanned from about 635 to 541 million years ago. The research raises ...

Today it represents something quite different: a set of extraordinary clues, recently reinterpreted, to one of the deepest and most puzzling mysteries of life on Earth. After burbling along for ...