Source of Protective Space Shield Identified 1 234 567

Source of Protective Space Shield Identified

voanews.com

Human-caused space pollution can range from a hammer that floats away from a space station, to a nuclear weapons test in the atmosphere, and could damage nearby spacecraft. But one unexpected source of “pollution” helps many satellites. The special pollution protects spacecraft from “killer electrons,” in a region above the earth called the Van Allen belts. Reporting from Boulder, Colorado, Shelley Schlender reports.

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