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What does 10 year signify to our 4.6 billion - year - oldsun ? Probably about as much as the last millionth of a second meant to you . Still , every X that our previous Dominicus burns on is a decade of turbulent , sometimes violent change — a fact that becomes beautifully unmistakable in a new time - lapse video fromNASA ’s Solar Dynamics Observatory ( SDO ) .
In the sensational picture , titled " A Decade of Sun , " astronomer compiled 425 million high - definition images of the sun , snapped once every 0.75 second between June 2 , 2010 and June 1 , 2020 . Each moment of the video represents one day in the sun ’s life , and the integral ten blazes by in about 60 minutes ( though you may see our 6 - minute highlighting spool above ) .
During that decade , the Sunday undergoes a sea change , easy bubble with enormous magnetized ripples known assunspots , which peaked around 2014 before fading aside again . The sun ’s quiescence was n’t a surprisal ; every 11 age or so , the sun ’s charismatic poles suddenly switch places ; North becomes South , solar magnetic natural process begin to decline , and the sun ’s Earth’s surface starts to look like a tranquil ocean of yellow fire . This stop of proportional equanimity is call asolar minimum(and we are presently in the midst of one ) .
midway between one decade ’s pass - fizzle and the next , however , a violent duty period pass off . magnetised bodily function increases to a vibrant gamey , live as a solar upper limit , and the star topology ’s Earth’s surface ripples withgigantic sunspots , bristles with lashingmagnetic fieldlines and pops with plasma plosion known as solar flares . Each maximal pinnacle with another magnetic terminal reversal , signaling the start of a new solar bicycle .
These variety are gruelling to blob from Earth with the naked center ( though solar maxima do result in more visibleaurorasat lower latitudes around the world ) , but NASA ’s SDO artificial satellite sees them clearly as it monitors our star in extremeultraviolet light . These extremist - gumptious wavelength cut through the sun ’s glare and reveal the abundant charismatic changes in the sun ’s outermost atmosphere , or St. Elmo’s fire . It ’s a sensational spectacle to see — even if the Lord’s Day has likely already forgotten all about it .
Originally put out onLive skill .
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