The most active sunspot of Solar Cycle 25, AR3663, has done it again! Launching yet another X-class solar flare as it approaches the sun's western limb. And it's not alone; its sunspot 'cousin' AR3664 ...
According to Beatles singer-songwriter George Harrison, all things must pass, and according to decades of mathematical and astronomical models, these things include the sun. So, when is the sun ...
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