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2015-07-22 05:54:56

Artist’s impression of the solar wind ineracting with Pluto’s mainly nitrogen atmosphere. Some of the molecules in the atmosphere have enough energy to overcome Pluto’s weak gravity, so escape into space where they are ionized by solar ultraviolet radiation. As the solar wind encounters the obstacle formed by the ions, it is slowed and diverted (the red region), possibly forming a shock wave upstream of Pluto. The ions are “picked up” by the solar wind and carried in its flow past the

Image uploaded by Robert Myles
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