'EARTH INNER CORE IS SOFTER THAN THOUGHT'

The inner core of the earth is solid,and softer than previously thought according to a study which could improve our understanding of how the planet was formed.
     Researchers at the Australian National University came up with  a way to detect shear waves ,or "J WAVES" in the inner core - a type of wave which can only travel through solid objects. The inner core shares some similar elastic properties with gold and platinum