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PHOTO INDEX OF PRIMARY TARGETS ASTEROIDS COMETS EARTH JUPITER KUIPER BELT MARS MERCURY METEORITES NEPTUNE OORT CLOUD PLUTO SATURN SOLAR SYSTEM SPACE SUN URANUS VENUS ORDER PRINTS OTHER PHOTO INDEXES ALL TARGETS PHOTO CATEGORIES SCIENCEVIEWS AMPHIBIANS BIRDS BUGS FINE ART FOSSILS INDIAN INDIAN MAMMALS OTHER PARKS PLANTS RELIGIOUS REPTILES ROCKS & MINERALS SCIENCEVIEWS PRINTS

Proton Aurora Target Name:   Earth's Aurora Spacecraft:   IMAGE Produced by:   NASA Copyright:  NASA Copyright Free Policy Date Released:  31 May 2000 Related Document IMAGE Spacecraft Takes First Pictures of Electrified Gas Surrounding Earth Download Options Name Type Width x Height Size si12enh.jpg JPEG 512 x 472 39K si12enh.jpg JPEG 1024 x 943 102K si12enh.tif TIFF 1024 x 943 818K Auroral emissions are excited principally by electron precipitation. We know that some of the auroral emissions are produced by precipitating protons but up until now have never observed a "proton aurora" from space. IMAGE is the first spacecraft to measure the proton aurora.

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