Two Ship Journey

From what I have seen and heard, there are two ships in the film, the "Prometheus" and the "Magellan". I wonder if the "Magellan was sent first but never returned and thus, the "Prometheus" is sent out. Perhaps the company sent out the first ship for first contact but contact was lost with their first exploration. Or there were underlying secrets of the missions, that were never told to the crew with the exception of the planted seeds (androids, human), like in "Alien" with Ash. Just throwing this out there.