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THE SUN IN ULTRA-HIGH DEFINITION
The sun undergoes continuous changes, and NASA's Solar Dynamics Observatory (SDO) is dedicated to its continuous observation. Launched on February 11, 2010, the SDO maintains a constant watch over the entire solar disk, offering a prominent vantage point to capture the elegant movements of solar materials within the sun's corona, or atmosphere.
Utilizing ten distinct wavelengths, SDO captures images of the sun, each wavelength highlighting a different temperature range of solar materials. This enables the identification of specific solar structures such as solar flares—explosive eruptions emitting light and x-rays—and coronal loops—curved trajectories of solar material following magnetic field lines.
Scientists meticulously analyze these images to gain deeper insights into the intricate electromagnetic processes that drive the sun's dynamic behavior. These phenomena can ultimately impact Earth, as events like solar flares and coronal mass ejections can occasionally disrupt space technologies. Moreover, investigating our nearest star serves as a key to unlocking knowledge about other stars within our galaxy.
The SDO spacecraft, constructed, operated, and overseen by NASA's Goddard Space Flight Center in Greenbelt, Md., is part of NASA's Science Mission Directorate in Washington, D.C. This mission not only enhances our comprehension of the sun's behavior but also contributes to the broader understanding of celestial bodies throughout the cosmos.
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