In January of this year, the Chang’e 4 lander deployed Yutu No. 2 on the 115-mile-wide (186-kilometer) von Karman crater in the Aitken Basin in the Antarctic. The deployment position was relatively flat. The minerals found in the lunar rover are significantly different from the typical lunar surface materials. The researchers believe that these minerals are likely to have been hit by the previous meteorite impact at the bottom of the Aitken Basin, which caused a 45-mile wide (72 km) neighborhood. The Finson crater.
Analysis of the reflected light waves from these minerals indicates the presence of olivine and low-calcium pyroxene in these minerals. Scientists point out that this coincides with long-term predictions of the composition of the upper mantle on the moon, and may support the mainstream speculation model for the formation and evolution of the moon: the ocean of supercooled magma on the moon.