The recently cancelled Constellation program was designed to
return humans to the Moon by 2020. It was composed of these
spacecraft:
1. The Orion CEV. This vehicle would have brought astronauts to the
ISS.
2. The Ares I rocket. This rocket would have launched the Orion CEV
into orbit.
3. The Altair lunar lander. This lander would have brought astronauts
to the surface of the Moon. It could also have been modified to carry
cargo the Moon as well.
4.The Ares V rocket. This rocket would have brought cargo to the space
station. It aslo could have been modified to deliver the Altair lander
and the Orion CEV to the Moon.
This addon includes a cargo variant of the Ares V, a lunar mission variant, and a lunar cargo delivery variant. It also includes both variants of the Altair lunar lander.
Required Addons:
 -Vinka's spacecraft3 (http://users.swing.be/vinka/spacecraft3_060302.zip)
 -Vinka's spacecraft3 Patch (http://users.swing.be/vinka/spacecraft3_2006-P1.zip)
 -Vinka's multistage2 (http://users.swing.be/vinka/multistage_050721.zip)
 -Vinka's stage Patch (http://users.swing.be/vinka/Stage_2006-P1.zip)
 -LC-39A (http://www.orbithangar.com/searchid.php?ID=2787)
 -Hires or Medres KSC (http://www.orbithangar.com/searchid.php?ID=2811) or (http://www.orbithangar.com/download.php?ID=2821)
 -Lunar Electric Rover (http://www.orbithangar.com/searchid.php?ID=4305)
Required for Lunar Mission Scenarios:
 -Orion CEV (http://www.orbithangar.com/searchid.php?ID=4437)
New in v1.5:
 -More realistic implementation of Altair lunar lander
 -Lunar rover added
 -Minor glitches fixed
Credits:
 Authors: Columbia42, Istochnikov, Cymrych, PhantomCruiser, Pablo49.
 -Technical data provided by Istochnikov, Cymrych, and Columbia42
 -Fairing meshes by Istochnikov
 -Textures by Pablo49
 -Ares V Autopilot by PhantomCruiser, Cymrych, and Columbia42
 -Everything else by Columbia42