06-09-2016 18:53 via scitechdaily.com

NASA’s Solar Dynamics Observatory Witnesses a Double Eclipse

NASA’s Solar Dynamics Observatory viewed both Earth and the moon crossing in front of the sun. SDO keeps a constant eye on the sun, but during SDO’s semiannual eclipse seasons, Earth briefly blocks SDO’s line of sight each day – a consequence of SDO’s geosynchronous orbit. On September 1, Earth completely eclipsed the sun from […]
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