Take a look at the new Constellation video, which gives an overview of the progress that has been made. You can view it either on the Constellation multimedia page on NASA.gov or on the NASA Television YouTube page.
NASA.gov:
https://www.nasa.gov/mission_pages/constellation/multimedia/index.html
NASA Television on YouTube:
https://www.youtube.com/watch?v=Q7lPByc_NxM&feature=channel_page
quiero que me envien el video soy muy afisionado de el espacio