Ten things we’ve learned about the sun from NASA’s SDO this decade

Posted: February 13, 2020 by oldbrew in Astronomy, Solar physics, solar system dynamics
Tags: ,

The linked article contains more video material and images.
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In February 2020, NASA’s Solar Dynamics Observatory—SDO—is celebrating its 10th year in space, reports Phys.org.

Over the past decade the spacecraft has kept a constant eye on the sun, studying how the sun creates solar activity and drives space weather—the dynamic conditions in space that impact the entire solar system, including Earth.

Since its launch on Feb. 11, 2010, SDO has collected millions of scientific images of our nearest star, giving scientists new insights into its workings.

SDO’s measurements of the sun—from the interior to the atmosphere, magnetic field, and energy output—have greatly contributed to our understanding of our closest star.

SDO’s images have also become iconic—if you’ve ever seen a close up of activity on the sun, it was likely from an SDO image.

SDO’s long career in space has allowed it to witness nearly an entire solar cycle—the sun’s 11-year cycle of activity.

Here are a few highlights of SDO’s accomplishments over the years.

  1. JB says:

    Well, they definitely have not learned what’s going on with item ten. Back to Magnetics 101.

  2. stpaulchuck says:

    As more papers get published on the TOTAL effects of the sun with regards to ‘third party’ actors like cosmic rays, this sort of direct science observation is just marvelous! Scientifically, this is a great time to be alive.

    Now I have to go out to the deck and light up my grill and do my part for global warming (minus 10 Fahrenheit on the deck just now).

  3. oldbrew says:

    Re. item 10: SDO sees new kind of magnetic explosion on sun
    DECEMBER 17, 2019

    Spontaneous reconnection offers one explanation for how hot the solar atmosphere is—mysteriously, the corona is millions of degrees hotter than lower atmospheric layers, a conundrum that has led solar scientists for decades to search for what mechanism is driving that heat.


    mysterious… conundrum…

    Why is the Sun’s corona so much hotter than the Sun’s surface?