Scientists unveil what moon is actually made of and it's not green cheese

Scientists put 'green cheese' rumours to rest with new research

Web Desk
April 23, 2024
Research find iron in moons core. — Nasa Johnson
Research find iron in moon's core. — Nasa Johnson

For many years, space enthusiasts have conspired that the moon is made up of green cheese but a recent investigation has put those suspicions to rest.

Science Alert, while citing a research published inNature in May last year, reportedthat the inner core of the moon is, in fact, a solid ball with a density similar to that of iron.

Researchers hope that this discovery will help settle whether the moon's inner heart is solid or molten, and lead to a more accurate understanding of its history and that of the Solar System.

The team led by astronomer Arthur Briaud of the French National Centre for Scientific Research in France wrote: "Our results question the evolution of the Moon magnetic field thanks to its demonstration of the existence of the inner core and support a global mantle overturn scenario that brings substantial insights on the timeline of the lunar bombardment in the first billion years of the Solar System."

In their research, they found that the most closely resembling models of the moon describe active overturn within the lunar mantle, where denser material falls towards the center and less dense material rises upwards.

They also found that the lunar core is very similar to that of Earth — with an outer fluid layer and a solid inner core — with a density of about 7,822 kilograms per cubic metre, close to iron.

According to Science Alert, soon after it formed, the moon's powerful magnetic field started to decline about 3.2 billion years ago.

The lunar core's composition is crucial in understanding the disappearance of the magnetic field, as it is generated through motion and convention within the core.

As humans plan to soon return to the moon, they may collect more information for seismic verification of these findings.