SPACE.com: NASA's Solar Probe Plus,
scheduled to launch no later than 2018, is designed to study the Sun's
outer atmosphere. Five science experiments were chosen from thirteen
proposals to fly on the spacecraft, which is being built at the Johns
Hopkins University's Applied Physics Laboratory; the instruments
include a solar wind particle detector and a 3D camera. "The
experiments selected for Solar Probe Plus are specifically designed to
solve two key questions of solar physics: Why is the sun's outer
atmosphere so much hotter than the sun's visible surface, and what
propels the solar wind that affects Earth and our solar system?" said
Dick Fisher, director of NASA's heliophysics division.
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