What Is HAARP? The High-frequency Active Auroral Research Program (HAARP) is the world’s most capable high-power, high-frequency (HF) transmitter for the study of the ionosphere.  The principal instrument is the Ionospheric Research Instrument (IRI), a phased array of 180 HF crossed-dipole antennas spread across 33 acres and capable of radiating 3.6 megawatts into the upper … Continue reading HAARP Beyond Alaska: Tracing the Global Network of Ionospheric Research Facilities