| http://www.w3.org/ns/prov#value | - th Venus and Earth will be double dusted by ISON's debris trail on January 14, 2014!Earth also has its own ionosphere located at the inner edge of its magnetosphere.The ionosphere is a region of the upper atmosphere, from about 85 km (53 mi) to 600 km (370 mi) altitude, and includes the thermosphere and parts of the mesosphere and exosphere.
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