27 February 2020
Yutu-2 rover is equipped with a Lunar Penetrating Radar (LPR) to investigate the underground it roams. A study conducted by a research team led by Li Chunlai and Su Yan at the National Astronomical Observatories of the Chinese Academy of Sciences (NAOC) reveals what lurks below the lunar far side surface. The LPR sends radio signals deep into the surface, reaching a depth of 40 meters by the high-frequency channel of 500 MHz - more than three times the depth previously reached by the Chang'e 3 lunar probe. This data allowed the researchers to develop an image of the subsurface stratigraphy of the far side of the Moon. "We found that the signal penetration at the Chang'e 4 site is much deeper than that measured by the LPR at the landing site of the Chang'e 3 probe on the near side of the Moon," said Li Chunlai, a research professor and deputy director-general of NAOC. The study was published in the latest issue of Science Advances. 
link to article "The Moon’s farside shallow subsurface structure unveiled by Chang’E-4 Lunar Penetrating Radar" in journal Science Advances.