Tomorrow's scheduled launch puts an exclamation point on a new era of space transportation. If the first era of space flight focused on a Cold War-driven race to show what could be done, and the second era focused on making space flight and delivering orbiting payloads routine, this new era is focused on making all of the above a lot less expensive.
SpaceX is leading the charge to bring down the cost of flying to space. Driven by a personal desire to make life multi-planetary -- aka travel to Mars -- the company's founder and leader Elon Musk has built a program with about $4 billion worth of contracts and launch orders already on its books. But it has only launched a few customer payloads so far.