Here's what the official Mission:SPACE site (
http://www.disney.go.com/vacations/missionspace/index.html) has to say in the latest update (I don't know how recent, but it sounds recent):
***Mission:SPACE is well over a year away from launch, but construction on the project has taken a giant leap forward with the soon-to-be-completed elements that make up the "Planetary Plaza".
The plaza is the "welcome center" for Mission:SPACE, the thrilling, one-of-a-kind "astronaut-like" experience presented by Compaq Computer that will open in 2003. In the plaza, astronaut candidates will be introduced to the International Space Training Center (ISTC) and their eventual journey into space.
"We wanted to give guests a sense of the extraordinary place they're about to go." saya Luc Mayrand, one of the designers of the Planetary Plaza. "The space is a bit disorienting because we've tried to remove any semblance of a horizon. We've used abstract forms like powerful, sweeping curves and more descriptive elements like spheres to create orbital patterns that create a feeling of movement in outer space."
Construction continues on the rest of the facility as well, including the most prominent element in the plaza, a large red shere that serves as the entrance to the ISTC Recruiting Center, the first stop on guests' Mission:SPACE experience.***
I think the phrase "The space is a bit disorienting because we've tried to remove any semblance of a horizon." is telling, don't you think? Maybe they should have just said "Horizons" instead! :'/