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The Space Environment. This is a map of the space environment, although greatlyforeshortened. The 93 million miles between Sun and Earth is sacrificed to showejections from the Sun, which hit the sweeping Magnetopause at the front edgeof the Magnetosphere. The Earth, half in shadow, is surrounded by the Van AllenRadiation Belts (orange) and the magnetosphere. The Milky Way stars are visible.