The Apollo 10 lunar module, "Snoopy", will make a 4 million mile close approach to Earth. July 10, 2037. Apollo 10 was the fourth human spaceflight in the United States' Apollo program and the second to orbit the Moon. NASA, the mission's operator, described it as a "dress rehearsal" for the first Moon landing. It was designated an "F" mission, intended to test all spacecraft components and procedures short of actual descent and landing. Wiki link From Wikipedia's 2037 article: Wiki link