Learn How NASA Tracks The Solar Cycles
- last year
The 11-year solar cycle is tracked by NASA, learn how they do it.
Credit: NASA Goddard Space Flight Center
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Credit: NASA Goddard Space Flight Center
-
More at: https://www.space.com
Facebook → https://www.facebook.com/space.com
Instagram → https://instagram.com/cyclingweeklyma...
Twitter → http://twitter.com/spacedotcom
Pinterest → http://www.pinterest.co.uk/spacedotcom