File:STEREO and SDO see the entire sun.jpg
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|description={{en|1=Since their launch in 2006, the two {{w|STEREO|STEREO spacecraft}} have drifted further and further apart to gain different views of the sun.
|description={{en|1=Since their launch in 2006, the two {{w|STEREO|STEREO spacecraft}} have drifted further and further apart to gain different views of the sun.
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By providing such unique viewpoints, the STEREO mission has offered scientists the ability to see all sides of the sun simultaneously for the first time in history, augmented with a view from the earth's perspective by NASA's orbiting {{w|Solar Dynamics Observatory}} (SDO). In addition to giving researchers a view of active regions on the sun before they even come over the horizon, combining two views is crucial for three-dimensional observations of the giant filaments that dance off the sun's surface or the massive eruptions of solar material known as coronal mass ejections (CMEs).}}
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By providing such unique viewpoints, the STEREO mission has offered scientists the ability to see all sides of the sun simultaneously for the first time in history, augmented with a view from the earth's perspective by NASA's earth-orbiting {{w|Solar Dynamics Observatory}} (SDO). In addition to giving researchers a view of active regions on the sun before they even come over the horizon, combining two views is crucial for three-dimensional observations of the giant filaments that dance off the sun's surface or the massive eruptions of solar material known as coronal mass ejections (CMEs).}}
|date=2012-10-26
|date=2012-10-26
|source=[http://www.nasa.gov/mission_pages/stereo/news/6th-anniversary.html STEREO Reaches New Milestone At Its Sixth Anniversary]
|source=[http://www.nasa.gov/mission_pages/stereo/news/6th-anniversary.html STEREO Reaches New Milestone At Its Sixth Anniversary]