An increase in surface activity is expected because our Sun is approaching solar maximum in 2025. However, last month our Sun sprouted more sunspots than in any month during the entire previous 11-year solar cycle – and even dating back to 2002. The featured picture is a composite of images taken every day from January to June by NASA’s Solar Dynamic Observatory. Showing a high abundance of sunspots, large individual spots can be tracked across the Sun’s disk, left to right, over about two weeks. As a solar cycle continues, sunspots typically appear closer to the equator. Sunspots are just one way that our Sun displays surface activity – another is flares and coronal mass ejections (CMEs) that expel particles out into the Solar System. Since these particles can affect astronauts and electronics, tracking surface disturbances is of more than aesthetic value. Conversely, solar activity can have very high aesthetic value – in the Earth’s atmosphere when they trigger aurora.

  • @[email protected]
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    1 year ago

    What exactly is a sunspot? I always assumed same thing as cme without ever looking into it. Sounds like there is a difference?

    Love the picture btw!

    • speck
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      51 year ago

      Gotta admit I’m more concerned to learn what solar maximum is

        • speck
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          41 year ago

          Slightly anticlimactic, with some chance of cataclysm

          • @[email protected]
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            1 year ago

            No biggie if that chance happen we get to see auroras everywhere perhaps our lights won’t need to be plugged. Apparently the biggest one were able to power telegraph without battery with how efficient light bulbs today it might be enough to power it until it burns out. If it happens everyone will be force to touch grass whether they like it or not.

    • Venutian SpringOPM
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      11 year ago

      It’s just an are that is cooler than the surrounding plasma. Formed through changes in the magnetic field. Here’s a cool article.

      • @[email protected]
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        21 year ago

        and fun fact, apparently they only look that dark in relation to the rest of the sun; they’d be a glowing orange-ish color if isolated