FOR IMMEDIATE RELEASE

A single, four-stage sounding rocket successfully launched into the aurora at 11:23 p.m. on Sunday, January 13 from Poker Flat Research Range. The rocket, a Black Brant XII, is part of an experiment designed to use Global Positioning System (GPS) radio signals to understand how oxygen emitted from the aurora triggers the expansion of the ionosphere into space, resulting in the formation of radiation belts.

Radiation belts around the earth limit the life of satellites and are a potential hazard for astronauts working outside a spacecraft.