Space Mission Timeline By scienceproject Dec 20, 2011 Building of Lunar Lander Begins Dec 20, 2011 Materials for Lunar Base Begin to be Gathered Dec 20, 2012 Lunar Lander is completed Dec 21, 2012 Lunar Lander is Packed, and Launched into Space Dec 24, 2012 Lunar Lander Arrives on the Moon in Rupes Tascanelli Dec 25, 2012 Building Process of Base Begins Jun 1, 2013 Laboratory/Research Facility of Base is Completed Jun 2, 2013 The Study of Aristarchus Begins Mar 27, 2014 First Group of Observers are Launched from Earth Mar 30, 2014 First Group of Observers Arrive on the Moon Mar 30, 2014 Building process of Base is Complete Aug 30, 2014 Launch of First Group of Observers Back to Earth Sep 2, 2014 First Group of Observers Arrive Back on Earth Sep 9, 2014 Launch of Second Group of Observers to the Moon Sep 12, 2014 Secong Group of Observers Arrive on the Moon Feb 12, 2015 Launch of Second Group of Observers Back to Earth Feb 15, 2015 Second Group of Observers Arrive Back on Earth May 1, 2015 Launch of Lunar Lander Back to Earth May 4, 2015 Mission Ends: Lunar Lander is Back on Earth