coondoggie writes "NASA today said it had picked five experiments that will ride aboard one of its most ambitious space missions to explore the Sun. The Solar Probe, a car-sized spacecraft, is scheduled to launch no later than 2018 and will fly closer to the Sun's surface than any other probe, NASA stated. Ultimately the spacecraft's goals are to help scientists understand why 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, NASA said." Read more of this story at Slashdot.