THE STRONGEST FLARE OF SOLAR CYCLE 25: Sunspot AR3842 erupted again on Oct. 3rd producing the strongest solar flare of the current Solar Cycle so far. NASA's Solar Dynamics Observatory recorded the X9.0 blast. A halo CME is emerging in SOHO LASCO C3 imagery. The previous X7 and now X9 CMEs combined could spark strong geomagnetic storms. Stay tuned for updates… | Solar Underground

Solar Minimum Sunspot During the past 24 hours, sunspot AR2715 has...

Gargantuan Sunspot. Region 2192 continues to evolve as it rotates across the southeast quadrant of the visible solar disk. New spot development is being observed within the central portion of the cluster this morning and this indicates that this complex continues to grow. With a prominent delta magnetic formation present, additional flaring will be very possible. Just how big is this sunspot? Our planet Earth could line up across the cluster at least 8 times over. This upcoming week will see the