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COMETS EARTH JUPITER KUIPER BELT MARS MERCURY METEORITES NEPTUNE OORT CLOUD PLUTO SATURN SOLAR SYSTEM SPACE SUN URANUS VENUS ORDER PRINTS
PHOTO CATEGORIES SCIENCEVIEWS AMERICAN INDIAN AMPHIBIANS BIRDS BUGS FINE ART FOSSILS THE ISLANDS HISTORICAL PHOTOS MAMMALS OTHER PARKS PLANTS RELIGIOUS REPTILES SCIENCEVIEWS PRINTS
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Depth sounding of the tenuous extension of the Earth's upper ionosphere about 20,000 kilometers into space around the Earth, called the plamasphere, using the Radio Plasma Imager instrument. The green traces correspond to echoes from the plasmasphere at varying depths. |
