NASA will launch a trio of microsatellites later this month to explore Earth's magnetic field and test new technology that could be used in future space science missions.
The Space Technology 5 (ST5) microsatellites will launch from Vandenberg Air Force Base in California on Feb. 28 aboard a Pegasus XL rocket and be placed in polar orbit approximately 3,000 miles (4,500 km) above Earth.
The ST5 mission is part of NASA's New Millennium Program (NMP) created to identify and develop new technologies that could be used in future low cost science missions. Specifically, ST5 is designed to demonstrate the benefits of using multiple spacecrafts to make simultaneous measurements while in different locations.
The mission will be first step in developing missions of 10 to 100 small spacecrafts that would investigate "space weather," the interaction of charged particles from the Sun with Earth's magnetic field.
"We need to deploy 10 or even 100 space weather buoys in Earth-orbit at a variety of distances to arrive at a mature understanding about what exactly are the physical processes behind space weather," said ST5 project scientist Jim Slavin in a press conference today.
"[ST5] is really a proxy for a more complete suite of particle and field instruments," Slavin said. "It is possible that there is a discovery will be made, but the primary purpose is the technology validation."
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