Satellite-tracking antenna

Satellite-tracking antenna

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This image is part of the feature Poker Flat Aurora Research

Credit: ALAN SIRULNIKOFF/SCIENCE PHOTO LIBRARY

Caption: Tracking antenna. Time-exposure image of star trails and an aurora borealis, or northern lights, display silhouetting a satellite-tracking antenna at Poker Flat Research Range (PFRR), Alaska, USA. The antenna tracks, and receives data from, polar- orbiting satellites. These satellites, and other equipment including meteorological balloons and sounding (non-orbiting) rockets, collect data on the Arctic atmosphere. Much of the research is on the aurorae, the light displays (visible at night) that result from the hundreds-of-kilometres-high atmospheric impacts of charged particles from the Sun. These particles are drawn to the polar regions by the Earth's magnetic field.

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Keywords: alaska, america, american, antenna, arctic, astronomy, astrophysics, atmosphere, atmospheric, aurora borealis, aurorae, auroral, climate, communication, communications, data collection, dish, equipment, instrument, night sky, northern lights, parabolic, poker flat research range, polar, radio, satellite, satellite-tracking station, silhouette, silhouetted, sounding rockets, space, star trails, telemetry, time exposure, time-exposure, tracking, trail, transmission, united states, us, usa

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