NASA's twin Solar Terrestrial Relations Observatory (STEREO) spacecraft have made the first three-dimensional images of the sun.
These images will be used to improve space weather forcasting by taking 3-D images of solar storms originating from the sun's carona. The solar storms can disrupt satellites, radio communication and power grids on earth.
STEREO consists of two spacecraft orbiting the sun, one in front of the earth and one slightly behind the earth, separating each by approximately 45 degrees per year.
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