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"We were able to correct for everything that was a problem before, the reasons people said zircon couldn't be used," she told Mike Wall at Hopefully, as these measurements become more and more precise, we will gain a full understanding of how the Moon - and the rest of the Solar System - formed, giving us more details about life on Earth, and the possibility of life on other planets.The reason we've never been able to accurately date the age of the Moon in the past is that there's very few well-preserved Moon rocks left on its surface.Most of the rocks brought back by Apollo astronauts are breccias - mixes of different rocks that have been mashed together by the meteorite strikes that plague the Moon, thanks to its lack of atmosphere.We have no idea how much older thing B is, we just know that it's older.That's why geologic time is usually diagramed in tall columnar diagrams like this.The team performed a process known as uranium-lead dating on zircon samples that were extracted from the Apollo 14 space rocks.This required them to liquefy the zircon samples in acid, destroying the space rock artefacts.

However, despite its importance, the age of the Moon has never been accurately determined," reports the team, led by Melanie Barboni from the University of California, Los Angeles.

So instead of trying to find chunks of rock that had been there since the early days, the team instead turned to zircon - a mineral that would have formed as the Moon was cooling from its fresh, molten state into the rocky satellite we see today.

Once formed, zircon crystals stay perfectly intact as little time signatures of geological events.

"The evolution of Earth could only have started after this impact," Barboni told The Verge.

"And that’s why it’s so important to date this impact, because you want to know when Earth started to evolve into the beautiful planet we all know today." While the new measurement is the most precise to date, some outside researchers have said that the act of dissolving the zircon in acid might have changed some of the results slightly, but Barboni says they accounted for these concerns.

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