The Chang'e 4 mission totes six kinds of scientific payloads, David says: "On the lander, it carries the Landing Camera (LCAM), the Terrain Camera (TCAM), and the Low Frequency Spectrometer (LFS). There are three kinds of payloads on the rover, the Panoramic Camera (PCAM), the Lunar Penetrating Radar (LPR), and the Visible and Near-Infrared Imaging Spectrometer (VNIS)."
China's space ambitions
President Xi Jinping wants to make China a space powerhouse within the next decade. Conquering the moon's mysteries has been an early and critical first goal of China's ambitious space program.
In 2013, China became the third country after the US and the former Soviet Union to "soft-land" on the moon.
The US made its own incredible firsts this week. On New Year's Day, NASA's New Horizons probe flew past the most distant place ever explored by humankind - a frozen rock at the edge of the solar system.
President Donald Trump has vowed to strengthen America's supremacy in space, saying he wants to go back to the moon, and proposing a Space Force branch of the military.