Here is a video for all of you that missed the Falcon 1 launch yesterday. The successful launch makes the Falcon 1 the world's first privately developed liquid fuel rocket to orbit the Earth.
This launch comes after the failure of the Falcon 1 (Flight 3). During Flight 3, a problem occurred just after the first separation which prevented the second stage from occurring and from reaching orbit. According to their press release, "SpaceX was aware of and had allowed for a thrust transient, but did not expect it to last that long. As it turned out, a very small increase in the time between commanding main engine shutdown and stage separation would have been enough to save the mission. The fix was also very simple, requiring one line of code to be changed."
The Falcon 1 (Flight 4) is carrying only a payload mass simulator of approximately 364 pounds, the last doomed shuttle was carrying the Trailblazer, two CubeSats (one of which was NASA's NanoSail-D) for the Air Force and MDA and unfortunately, also carried the remains of astronaut Gordon Cooper and the actor James Doohan from Star Trek.