Harrison Schmitt credits the image to the entire Apollo 17 crew. While on the Moon's surface, Schmitt — the only geologist in the astronaut corps — collected the rock sample designated Troctolite 76535, which has been called "without doubt the most interesting sample returned from the Moon". Among other distinctions, it is the central piece of evidence suggesting that the Moon once possessed an active magnetic field. As he returned to the Lunar Module before Cernan, Schmitt is the next-to-last person to have walked on the Moon's surface. After the completion of Apollo 17, Schmitt played an active role in documenting the
Chen Dong (astronaut) 2016, marking China's longest manned space flight to date. The reentry module of the Shenzhou-11 spacecraft landed in Inner Mongolia around 2.15 p.m(China time) after detaching from the space lab on 17 November. For his achievements on the Shenzhou 11 mission, Chen was awarded the Spaceflight Merit Medal (Third Class) along with the honorary title of "hero astronaut" on 26 December 2016 by the Central Military Commission. Chen has twin sons. Chen Dong (astronaut) Chen Dong (; born 12 December 1978) is a Chinese pilot and astronaut selected as part of the Shenzhou program. A fighter pilot in the People's