But a new study has found that its edges are softer than realized and actually changing shape as they press against the liquid iron and nickel in Earth’s outer core. “The molten outer core is ...

A new study finds evidence that the inner core’s outer boundary has noticeably changed shape over the past few decades. “The most likely thing is the outer core is kind of tugging on the inner ...

Planetary Potato: Earth has a complex internal structure consisting of a solid iron-nickel core at the center and a liquid outer core. The interaction between these two elements can significantly ...