In about 15 minutes At some point soon, hopefully, SpaceX is going fire off a redesigned Falcon 9 rocket with a commercial satellite attached. According to USA Today, it's the first such launch from Cape Canaveral, Florida in four years. Watch all the action in the embedded video below. It's going to be fiery, fast, and riveting.
Update: Aaaand the mission's been scrubbed. There's no official reason yet, but the plan is to try again on Thanksgiving. Hopefully with better luck.