JERRY LODRIGUSS / SCIENCE PHOTO LIBRARY JERRY LODRIGUSS / SCIENCE PHOTO LIBRARY
Anomalous Transport Rocket Experiment (ATREX). March 27, 2012..Clouds from suborbital sounding rockets are seen here, part of the Anomalous Transport Rocket Experiment (ATREX), launched from Wallops Island off the Virginia coast. The rockets released trimethyl aluminium, a chemical tracer, that turned into milky white luminous clouds, at altitudes of 50 to 90 miles to study the interaction of high altitude winds and complicated electrical current patterns that surround the Earth.
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