November 4, 2025

The Moon’s Juicy Secret: Spilling the Beans on What’s Hidden Inside and How It Shakes Up Solar System History

Since the days of Apollo 11, the Moon has been a source of scientific intrigue. And now, a team of international researchers has finally cracked one of its biggest mysteries: what’s inside that rocky sphere.

Solving the age-old debate

The Moon's best-kept secret: revealing what hides inside and why it changes the history of the solar system

For years, scientists have been arguing over whether the Moon has a solid core or just a gooey center. Well, the answer is finally out, thanks to a study in Nature. Turns out, the Moon has both: a solid inner core and a liquid outer core, resembling Earth’s structure. Mind blown!

The science behind the discovery

The Moon's best-kept secret: revealing what hides inside and why it changes the history of the solar system

Using data from space missions, seismic waves, and even changes in the Earth-Moon distance, the researchers led by Arthur Briaud pieced together the puzzle. And guess what? Their findings support a hypothesis from a decade ago, adding a new layer of certainty to our lunar knowledge.

The Moon’s magnetic field mystery

But wait, there’s more! The Moon once had a magnetic field that vanished long ago. Researchers believe it was caused by the core’s movements, sparking electric currents. Unraveling this mystery not only tells us about the Moon’s past but also offers insights into how our solar system came to be.

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