These 55 pound (24.75kg) ST5 satellites will study Earth's magnetic fields:
The mission's goal is to demonstrate the benefits of a group of small, low-cost satellites simultaneously measuring the earth's magnetic fields from different locations.
The ST5 project is part of NASA's New Millennium Program, which was created to identify, build and test innovative technologies for use in future missions.
A week ago, a technical glitch caused NASA to scrub the rocket release.