Ares I | Ares I-X

The Ares I-X vehicle used in the test flight was similar in shape, mass, and size to the planned configuration of later Ares I vehicles, but had largely dissimilar internal hardware consisting of only one powered stage. Ares I vehicles were intended to launch Orion crew exploration vehicles. Along with the Ares V launch system and the Altair lunar lander, Ares I and Orion were part of NASA's Constellation Program, which was developing the spacecraft for U.S. human spaceflight after the Space Shuttle fleet was retired.

Ares I was the crew launch vehicle that was being developed by NASA as part of the Constellation program. Ares I-X was a design concept demonstrator, that had a dummy second stage and a partially functional first stage.

The National Aeronautics and Space Administration is an independent agency of the executive branch of the United States federal government responsible for the civilian space program, as well as aeronautics and aerospace research. NASA have many launch facilities but most are inactive. The most commonly used pad will be LC-39B at Kennedy Space Center in Florida.