A Decade of Sun By NASA’s Solar Dynamics Observatory — SDO

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As of June 2020, NASA’s Solar Dynamics Observatory — SDO — has now been watching the Sun non-stop for over a full decade. From its orbit in space around the Earth, SDO has gathered 425 million high-resolution images of the Sun, amassing 20 million gigabytes of data over the past 10 years. This information has enabled countless new discoveries about the workings of our closest star and how it influences the solar system.

While SDO has kept an unblinking eye pointed towards the Sun, there have been a few moments it missed. The dark frames in the video are caused by Earth or the Moon eclipsing SDO as they pass between the spacecraft and the Sun. A longer blackout in 2016 was caused by a temporary issue with the AIA instrument that was successfully resolved after a week. The images where the Sun is off-center were observed when SDO was calibrating its instruments.

SDO and other NASA missions will continue to watch our Sun in the years to come, providing further insights about our place in space and information to keep our astronauts and assets safe.

*Chapters*
6:20 June 7, 2011-- A massive prominence eruption explodes from the lower right of the Sun.

12:24 June 5, 2012-- The transit of Venus across the face of the Sun. Won’t happen again until 2117.

13:06 July 19, 2012-- A complex loop of magnetic fields and plasma forms and lasts for hours.

13:50 Aug. 31, 2012-- The most iconic eruption of this solar cycle bursts from the lower left of the Sun.

20:25 Sept. 29, 2013-- A prominence eruption forms a long 'canyon’ that is then covered with loops of plasma.

36:18 May 9, 2016-- Mercury transits across the face of the Sun. Smaller and more distant than Venus it is hard to spot.

43:20 July 5, 2017-- A large sunspot group spends two weeks crossing the face of the Sun.

44:20 Sept. 6, 2017-- The most powerful sequence of flares during this solar cycle crackle for several days, peaking at X9.3.

57:38 Nov. 11, 2019-- Mercury transits the Sun once more for SDO. The next transit won’t be until 2032.

Video credit: NASA's Goddard Space Flight Center/SDO

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