nched a small, low-cost lunar ?orbital probe called SMART 1 ?on September 27, 2003РChinaРFirst phase lunar program (嫦娥-1 工程) — launched in 2007 : two uncrewed lunar orbital probes ?Second phase lunar program (嫦娥-2 工程)— to be launched in 2012 :first Moon landing of a couple of rovers ?Third phase lunar program (嫦娥-3 工程) — to be launched in 2017 : automated Moon landing and return sample ?Fourth phase lunar program (嫦娥-4 工程) — to be launched in 2024 : crewed mission and permanent bases (月面驻留)РSpace Shuttle(航天飞机)РEnterprise(开拓者号航天飞机) only use for test?Columbia(哥伦比亚号航天飞机)? 4.December 1981 —1.February 2003 ?Challenger(挑战者号航天飞机)? 4.April 1883—28.January 1986 ?Discovery (发现号航天飞机)30.August 1984?Atlantis(亚特兰蒂斯号航天飞机)3.October 1985 ?Endeavour(奋进号航天飞机)instead of Challenger? 7.May 1992Р哥伦比亚号空中解体Р挑战者号爆炸