Between June 3 and 4, 2024, the Chang'e 6 lunar probe(月球探测器) showed our national flag on the moon. This is the first flag of any country to fly there!
The flag uses very cool technology (技术). It is made of Xuanwu rock. You can often see this kind of rock on Earth. People often make the rock into floors and roads. The rock for making the flag comes from Hebei. Scientists first crushed (碾碎) the rock. Then, they made it into very thin threads (线), even thinner than your hair! Finally, they put these threads together to make a flag about the size of a piece of A4 paper.
Although the flag is made of rock, it is not heavy. It's just a little heavier than four ping- pong balls. The flag could stay there for over 10,000 years, said Zhou Changyi, one of the scientists who made the flag.
