Early tomorrow morning, Thursday December 4, NASA is scheduled to perform the first test flight of the new Orion spacecraft. The entirety of NASA's human space exploration plan hinges on Orion -- if the series of test launches go off without a hitch, Orion, eventually powered by the massive new Space Launch System rocket, will land humans on an asteroid in 2025, and then Mars around 2030. But first, let's discuss the first test launch taking place tomorrow morning.