Auroras may be visible from Alaska to New York as an incoming coronal mass ejection is expected to slam into Earth today.

The northern lights could be visible once again from some northern states Sunday night and again in the coming days, according to a forecast from the National Oceanic and Atmospheric Administration, as the effects of coronal mass ejections arrive and interact with the Earth in the next few days.

A strong geomagnetic storm forecast by NOAA’s Space Weather Prediction Center could make the aurora borealis visible overnight into Tuesday, potentially reaching as far south as the Midwest.

The northern lights surprise stargazers by appearing in many forms—from patches or scattered clouds, to streamers, arcs, rippling or dancing curtains. The lights move and change shape and color. Scientists attribute their vibrant colors to excited gases ...

Meteorologist David Yeomans forecasts on CBS News Chicago weekdays at 11 a.m. and 4 p.m., and reports on the Climate Watch team. The northern lights were visible Tuesday night across the Chicago area, illuminating the sky with brightly colorful displays ...