A haunting grin appeared on the sun as bright active regions and dark coronal holes combined to create a jack-o'-lantern face just in time for Halloween.
Auroras may be visible from Alaska to New York as geomagnetic storm conditions are predicted for tonight.
The livestream is scheduled to start at 1:30 p.m. EDT (1730 GMT) on Oct. 20.
Auroras may be visible from Alaska to Iowa as geomagnetic storm conditions are predicted for tonight.
Scientists say a train of CMEs could impact Earth's magnetic field Oct. 15–17, bringing a chance of northern lights across northern North America.
The sun's returning coronal hole could stir up geomagnetic storms and dazzling auroras under clear, dark skies this weekend.
Tune in to see this year's first supermoon as it lights up the autumn sky above the Italian countryside.
Auroras aren't over: the sun's decline brings more storms, and a 'last gasp' finale could light up skies in the next 2 years.
Auroras may be visible from Alaska to New York as geomagnetic storm conditions are predicted to continue tonight.
Auroras may be visible from Alaska to Idaho as geomagnetic storm conditions are predicted to continue tonight.
