Pure Science: Earth has a pulse with geological events spiking every 27.5 million years

The earth’s geological activity is thought to have a “pulse” that beats every 27.5 million years, resulting in a spike in major and cataclysmic naturally destructive events like large scale volcanism, plate rearrangement, mass extinctions, and ocean anoxia. ThePrint’s Sandhya Ramesh explains how researchers narrowed down the period of the pulse this week and what the findings mean.