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
RD-0109 lubricant. On January 2, 1959, as part of the Luna 8K72's Block-E stage, the engine RD-0105 finally performed its first successful mission, the launch of Luna 1. It was also the first deep space engine ignition, the first spacecraft to reach escape velocity and, while the spacecraft missed the Moon with which it was supposed to crash, it became the first human made object to enter an heliocentric orbit. On September 14, 1959, the RD-0105 propelled Luna 2 towards the Moon. It was the first spacecraft to reach the surface of the Moon, and the first man-made object to land