NASA | Solar Cycle

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The number of sunspots increases and decreases over time in a regular, approximately 11-year cycle, called the sunspot cycle. The exact length of the cycle can vary. It has been as short as eight years and as long as fourteen, but the number of sunspots always increases over time, and then returns to low again.

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i didn’t realize how old this video was until “maybe in 2013” was said

jimmygonzales

2:41 so now 2020, solar minimum has happening..., , great job scientist 👍

luckyqrent

@tuzmor I like the beeping noise at the end! If you have fallen asleep, however, I could see why you might feel that way.

fabmd

This video was nicely explaining that we are likely heading into a mini ice age.

ioaircraft

Failed to mention an increase in earthquakes, volcanos, and a deep winter cycle. Nothing to worry about, nothing to see here folks!

yededebdonkorotube

cosmic rays are high during solar minimums also

erickort

@wstevenschneider well, we are likely heading into one. i suggest to some research on the topic, it's for the most part unanimous that it's coming. as to global warming, it's been rising since 10, 000 bc, minus the multiple mini ice ages since then about every 500 years or so. i recommend doing some research on the history of this topic as well. the average increases are not out of sync with the historical data at all. i also recommend googling the term, magnetic pole shift. it's kind of a lot.

ioaircraft

Any two bodys gravitationally interact, producing heat, tides and more. There must be some 11 year cycle with Jupiter and the Sun. One of Jupiter's ellipse's focal points is within the Sun. Surely it's placement is not static, but varies within the Sun over 11 years, and thus produces these changes.

terryeo

Nothing to worry about? It's just called a grand solar minimum that's all. Tmes like Daltons minimum, Eddy's minimum, maunders minimum, or spores is plenty to worry about.

matthewimi

Thanks for making and posting this very informative video
- well done.
liked and subscribed ;)
Tom (F4collector)

Fcollector

No wonder I flip out every 11 years (-:

dickylobster

So, is it these flares that caused the hum noise heard around the world 2012, by passing and disrupting the earths magnetic field?

dulynoted

thanks! this helped me with my science poster

paulareyes

Any idea what mechanism drives this periodic alternation in the sun's magnetic poles? Is the suns' core radiation from the actual fusion process convected assymetrically or in a polar manner? (If it were polar, maybe this drives overall convection and causes the pole change?)

MichaelCox