SELENE lunar exploration missions or lunar outpost construction on the Moon between 2018 and 2025. SELENE SELENE (; Selenological and Engineering Explorer), better known in Japan by its nickname , was the second Japanese lunar orbiter spacecraft following the Hiten probe. Produced by the Institute of Space and Astronautical Science (ISAS) and the National Space Development Agency (NASDA), the spacecraft was launched on September 14, 2007. After successfully orbiting the Moon for a year and eight months, the main orbiter was instructed to impact on the lunar surface near the crater Gill on June 10, 2009. The orbiter's nickname, Kaguya, was
Explorer 16 Explorer 16 Explorer 16, also called S-55B, was an American satellite launched as part of Explorers program. Explorer 16 as launched on December 19, 1962, on Wallops Flight Facility, Virginia, United States, with a Scout rocket. Explorer 16 was the second in the series of micrometeoroid satellites orbited by NASA. Its purpose was to obtain data on the near-earth meteoroid environment, thus providing an accurate estimate of the probability of penetration in spacecraft structures by meteoroids and allowing a more confident definition of the relationship between penetration flux and material thickness to be derived. The cylindrically shaped spacecraft, about ,