Monday, October 20, 2025

Moon’s Composition Revealed by Scientists: New Findings

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Guess what? Scientists have discovered that the Moon is not made of green cheese, as some people believed. A study in May 2023 revealed that the Moon has a solid core similar to iron, not molten as previously thought. This new finding helps us understand the Moon’s history and the Solar System better.

Researchers led by astronomer Arthur Briaud used seismic data to study the Moon’s interior. They found that the Moon’s core is like Earth’s, with a solid inner core and a fluid outer core. This affects the Moon’s magnetic field and evolution.

Studies show that the Moon’s core is about 15% of its total radius, with a density close to that of iron. These results support earlier findings and offer new insights into the Moon’s structure.

Scientists hope to confirm these findings with more research, especially as we plan to return to the Moon soon. The study was published in the journal Nature in May 2023.

This information was first shared in May 2023.


Vocabulary List:

  1. Seismic /ˈsaɪz.mɪk/ (adjective): Relating to or caused by an earthquake or other vibration of the earth and its crust.
  2. Density /ˈdɛn.sɪ.ti/ (noun): The degree of compactness of a substance.
  3. Evolution /ˌiː.vəˈluː.ʃən/ (noun): The gradual development of something especially from a simple to a more complex form.
  4. Core /kɔːr/ (noun): The central or most important part of something.
  5. Insights /ˈɪn.saɪts/ (noun): An accurate and deep understanding of someone or something.
  6. Structure /ˈstrʌk.tʃər/ (noun): The arrangement of and relations between the parts or elements of something complex.

How much do you know?

What was the surprising discovery made about the Moon in May 2023?
It is made of green cheese.
It has a solid core similar to iron.
It has a molten core.
It has no core.
Who led the team of researchers studying the Moon's interior?
Arthur Briaud
Galileo Galilei
Marie Curie
Isaac Newton
What percentage of the Moon's total radius is its core?
5%
10%
15%
20%
What journal published the study on the Moon's core in May 2023?
Science
Nature
Scientific American
National Geographic
How did scientists study the Moon's interior?
By sending a probe
Using seismic data
By conducting visual observations
Collecting rock samples
What does the Moon's core density closely resemble?
Gold
Air
Iron
Water
The Moon is made of green cheese, as some people believed.
The Moon's core density is different from that of iron.
The Moon's core is entirely molten.
The Moon has a solid inner core like Earth.
The study on the Moon's core was shared in October 2023.
Scientists plan to return to the Moon for further research.
Scientists discovered that the Moon's core is about of its total radius.
The Moon's core density is close to that of .
The study on the Moon's core was published in the journal in May 2023.
Astronomer Arthur Briaud led the team using data to study the Moon's interior.
The Moon's core is similar to Earth's, with a solid inner core and a fluid core.
The study on the Moon's core provides new insights into the Moon's .
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