For humans this fact has direct consequences: the discovery raises concerns about future moon missions. “Future lunar bases and surface assets will have to be designed to withstand up to 500 meter per second (1,120 mph) impacts of small particles,” Emerson Speyerer, a planetary scientist at the Arizona State University at Tempe said. The moon has some billions of years old craters and its surface is vulnerable to a constant stream of cosmic impacts. NASA’s Lunar Reconnaissance Orbiter (LRO) was used to elaborate the study about the contemporary rate of lunar crater formation. About 960,000 square miles (2.49 million square kilometers) of the moon surface were scanned. 14,000 images were analyzed and compared. NASA recently approved a two-year extended mission for the Lunar Reconnaissance Orbiter.