Earth's Inner Core: Earth's solid metal sphere is 'textured'

Scientists used seismic data discovered Earth's inner core displays a variety of textures that it acquired will it formed from within the fluid outer core. The data set was generated over the past 27 years by a network of seismometers set up to enforce the nuclear test ban treaty.

from Latest Science News -- ScienceDaily https://ift.tt/x2uzqpE