If you missed the recent show from the aurora borealis (or northern lights, as they’re known in the northern hemisphere), fear not – we could be on the cusp of a repeat during the week starting June 3. Although there are absolutely no guarantees, the part of the sun that caused a G5 geomagnetic storm (the strongest since 2003) last month has returned to face Earth. And the good news is that it’s still active.According to NASA, the sunspot AR3697 (formerly
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