Earth Orbiting Satellites Maneuvered to Now Study the Moon

In another case of NASA reusing and recycling spacecraft, two of the five THEMIS spacecraft — which were studying the cause of geomagnetic substorms here on Earth — have a new mission. They made some very unique and complex maneuvers to reach two different LaGrange Points, and will turn their focus on the Moon. Particularly, they will try to determine how the solar wind electrifies, alters and erodes the lunar surface. This is timely since the discovery last year of water across the surface of the Moon which may be created by the solar wind interacting with the lunar surface.

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