Chang'e-3 launches in the second half of the year, adding a laser rangefinder

The second phase of China's lunar exploration project is 'a key step in the moon' and 'Chang'e-3' launch mission is scheduled for the second half of 2013. China will achieve its first soft landing of extraterrestrial objects. He said that the United States has already carried out manned missions to the moon, and they are going to farther places, such as Mars and asteroids. Speaking of China's Mars exploration program, he said that through the lunar exploration project, many technologies have been mastered and many infrastructures have been built. China's deep-space measurement and control communication capabilities will reach 400 million kilometers from the earth to Mars, with long-distance detection of Mars. Measurement and control communication capabilities.　　 However, according to national comprehensive considerations, there is currently no clear plan for Mars exploration. The lunar exploration program will focus on unmanned exploration before 2020.　　 Chang'e-3 will be the first extraterrestrial soft landing probe and rover (lunar rover) launched by China, and the first soft landing probe to return to the moon after the end of the Apollo program. Ye Peijian introduced that the Chang'e-3 probe will break through key technologies such as soft landing on the moon, lunar surface patrol and survey, lunar surface survival, deep space exploration communication and remote control operations, and direct entry of the launch vehicle into the Earth-Moon transfer orbit.　　 The Chang'e-3 lander carries a near-ultraviolet moon-based astronomical telescope and an extreme ultraviolet camera, and the patrol device carries a lunar radar. These are all pioneering works in the history of world lunar exploration. '　　 Ye Peijian said that the Chang'e-3 mission will obtain the topography and geological structure of the lunar landing and patrol area for the first time, and will achieve moon-night survival for the first time.　　 One day and night of the moon is equivalent to 14 days and nights of the earth. The high temperature during the day reaches 150 degrees Celsius, and the night is as low as -170 degrees Celsius. 'Ye Peijian said that the key breakthrough of the lunar surface survival heat control system will be an important point.　　 In addition to using some of the verified data of Chang'e-2, Chang'e-3 will also add a range-finding speed radar and a laser rangefinder.　　 Chang'e-4 is the backup star of Chang'e-3, but it will complete different detection missions. (The above is edited and compiled from the Internet by the metal laser cutting machine, see www.gnlaser.com for details)