: The "softness" of the solid core is attributed to hyperactive iron atoms that move within their molecular structure more than expected. Comparison of Earth's Core Layers
: Scientists now believe the inner core can behave like a shape-shifting material that deforms over human timescales due to interactions with the liquid outer core. Corre!
: A 2025 study from USC found that the surface of the inner core is changing and may be "softer" than previously thought. : The "softness" of the solid core is
Recent research published in early 2025 and 2026 indicates that Earth's inner core is , but instead exhibits viscous deformation and "mushy" characteristics. This "Corre!" or "core" update challenges the long-standing belief that the center of the Earth is a rigid, immobile ball of iron. Key Findings from Recent Studies Recent research published in early 2025 and 2026
: Recent data confirms the inner core’s rotation began to slow down in 2010, which can slightly affect the length of a day on Earth.