Luna 2 also crash land on the Moon in exactly the same way. Crash landing proved useful even after soft landing was mastered. NASA used crash landings to test whether Moon craters contained ice by crashing space probes into craters and testing the debris that got thrown out. The satellite's impact made it the first man-made object to land on another celestial body. "Luna 2" carried 5 different instruments to conduct various tests while it was on its way to the Moon. The scintillation counters would be used to measure any ionizing radiation; the Cherenkov radiation detectors would be measuring for electromagnetic
Way of the Celestial Masters the Celestial Masters. There is also evidence that after Zhang Lu’s submission to Cao Cao, numerous adherents fled south from Sichuan. These various followers of The Way of the Celestial Master coalesced to form a distinct form of Celestial Master Daoism known as the Southern Celestial Masters. The Southern Celestial Masters lasted as a distinct movement into the fifth century. Kou Qianzhi, who was raised in a Celestial Master family, received two visions of Laozi in 415 and in 423. In 424, he brought the work that resulted from these visions to the court of the Northern Wei dynasty. The