Exploration of Jupiter reach Europa after a 6.5 year cruise. The spacecraft would fly by the moon 32 times to minimize radiation damage. Because of the possibility of subsurface liquid oceans on Jupiter's moons Europa, Ganymede and Callisto, there has been great interest in studying the icy moons in detail. Funding difficulties have delayed progress. The "Europa Orbiter" was a planned NASA mission to Europa, which was canceled in 2002. Its main objectives included determining the presence or absence of a subsurface ocean and identifying candidate sites for future lander missions. NASA's "JIMO" ("Jupiter Icy Moons Orbiter"), which was canceled in 2005, and
Exploration of the Moon a sample return mission with its Chang'e 5 spacecraft in 2017, but that mission has been postponed until December 2019 due failure of the Long March 5 launch vehicle. India expects to launch another lunar mission in January 2019, the Chandrayaan-2, which would place a robotic rover on the Moon. Russia also announced to resume its previously frozen project Luna-Glob, an unmanned lander and orbiter, which is slated to launch in 2016. In 2015, Roscosmos stated that Russia plans to place an astronaut on the Moon by 2030 leaving Mars to NASA. The purpose is to work jointly with NASA