Should you have feedback on this article, please complete the fields below. Please indicate if your feedback is in the form of a letter to the editor that you wish to have published. If so, please be ...

In 2007, satellites detected an unusual gravity anomaly originating from deep within the Earth, suggesting rapid changes near the planet’s core. This gravitational anomaly, located in the Atlantic ...

The National Academies of Sciences, Engineering, and Medicine are private, nonprofit institutions that provide expert advice on some of the most pressing challenges facing the nation and world. Our ...