Quakes and blasts help scientists understand Earth’s elusive inner core
Sunday, May 21, 2023 - 14:33
in Astronomy & Space
About the size of Pluto, Earth’s inner core is made of solid iron and helps power the magnetic field that protects life from harmful space radiation. For more than a century, seismic waves have helped researchers identify and characterize the core’s properties. Science reporter Paul Voosen wrote about the most recent insights into the mysterious center of the planet.