Photos captured across the globe, including in the Chicago area, showed bright-colored skies in pink ... "Auroras tend to be dim, so away from city lights." If you can't travel, you might not ...

Chicago got some spectacular light shows last year when severe geomagnetic storms brought the Northern Lights all the way into the city.

CHICAGO (AP) — The Chicago River is once again glowing kelly green as the city opens its annual St ... While the river stays bright for several hours, some trace of color can remain for days.

CHICAGO (AP) — The Chicago River is once again glowing kelly green as the city opens its annual St ... While the river stays bright for several hours, some trace of color can remain for days.

CHICAGO (AP) — The Chicago River is once again glowing kelly green as the city opens its annual St. Patrick's Day celebrations. Thousands lined the river and packed bridges Saturday and erupted ...

The Chicago River is once again glowing kelly green as the city opens its annual St. Patrick’s Day celebrations.