regarding the incoming data. Hayabusa returned to Earth with samples from the asteroid on 13 June 2010. Lunar explorations After Hiten in 1990, ISAS planned a lunar penetrator mission called LUNAR-A but after delays due to technical problems, the project was terminated in January 2007. The seismometer penetrator design for LUNAR-A may be reused in a future mission. On 14 September 2007, JAXA succeeded in launching the lunar orbit explorer Kaguya, also known as SELENE (costing 55 billion yen including launch vehicle), the largest such mission since the Apollo program, on an H-2A rocket. Its mission is to gather data on the Moon's origin and evolution. It entered lunar orbit on 4 October 2007. After 1 year and 8 months it impacted the lunar surface on 10 June 2009 at 18:25 UTC. JAXA plans to launch its first lunar surface mission, SLIM (Smart Lander for Investigating Moon) on an Epsilon rocket in fiscal year 2019. Planetary exploration Japan's planetary missions have so far been limited to the inner Solar System, and emphasis has been put on magnetospheric and atmospheric research. The Mars explorer Nozomi (PLANET-B), which ISAS launched prior to the merger of the three aerospace institutes, became one of the earliest difficulties the newly formed JAXA faced. Nozomi ultimately passed 1,000 km from the surface of Mars. On 20 May 2010, the Venus Climate Orbiter Akatsuki (PLANET-C) and IKAROS solar sail demonstrator was launched by a H-2A launch vehicle. On 7 December 2010, Akatsuki was unable to complete its Venus orbit insertion maneuver. Akatsuki finally entered Venus orbit on 7 December 2015, making it the first Japanese spacecraft to orbit another planet, sixteen years after the originally planned orbital insertion of Nozomi. One of Akatsuki's main goal is to uncover the mechanism behind Venus atmosphere's super-rotation, a phenomenon in which the cloud top winds in the troposphere circulates around the planet faster than the speed that Venus itself rotates. A thorough explanation for this phenomenon has yet been found. JAXA/ISAS was part of the international Laplace Jupiter mission proposal from its foundation. A Japanese contribution was sought in the form of an independent orbiter to research Jupiter's magnetosphere, JMO (Jupiter Magnetospheric Orbiter). Although JMO never left the conception phase, ISAS scientists will see their instruments reaching Jupiter on the ESA-led JUICE (Jupiter Icy Moon Explorer) mission. JUICE is a reformulation of the ESA Ganymede orbiter from the Laplace project.