VISUAL ARCHIVE / IMAGE STORY
A Simplified Earth in Layers
Earth has a solid inner core and liquid outer core; visible boundaries and flows are explanatory.
Solid inner core, surrounding liquid outer core and rocky mantle shown as a simplified cutaway. AI-generated conceptual illustration; layer proportions, colours and visible flows are artistic choices.
THE OBSERVATION
What we can actually see.
Seismology and geophysical models distinguish a solid inner core, surrounding liquid outer core, and overlying mantle. The 2026 rotation study examines how gravitational coupling across this layered system might alter the mantle’s spin. The data constrain behavior without opening a window onto the layers themselves.
THE ILLUSTRATION
What the artwork imagines.
Layer widths, saturation, and visible streams are chosen to clarify structure. The cutaway is not to scale and cannot show actual colors or the instantaneous path of fluid in the outer core.
FROM THE ILLUSTRATED ARTICLE
The story that inspired it.
The article moves through Earth’s layers to explain how a small internal exchange can register as a measurable change in the day.
Read The Earth Has a Hidden Hand on the ClockCHECK THE RECORD
The image interprets the research below. Follow the original work for the measurements and limits behind the scene.
Zhang and Dumberry, gravitational torque and day lengthOTHER IMAGE STORIES
The Core’s Small Tug on the Clock
The Clock Hidden Inside Earth
The Mark Shared by Titan and Pluto