Out of an "abundance of caution," the station's three Russian cosmonauts were instructed to spend a night in the ISS laboratory module.

The sun has burped out bursts of energy called coronal mass ejections that could reach Earth Tuesday night. Forecasters said the vibrant displays could be visible across much of the northern U.S.

The British Geological Society is warning that the Earth is about to get hit by the most powerful solar storm in over two decades.

The predicted speed of the third coronal mass ejection in the series was the highest he'd ever seen: about 870 miles per second. Conde said that although the best auroras were forecast for Tuesday and Wednesday, the lights could continue to shine for the next few days.

The strongest solar storm in over 20 years continues, and a major boost on Wednesday afternoon could elevate this aurora experience to once-in-a-lifetime.

Northern Lights may dazzle again tonight as a severe geomagnetic storm reaches peak intensity across regions. Follow live.

A powerful solar storm could spark auroras as far south as northern California and Alabama on Wednesday, thanks to a particularly rambunctious area on the sun dubbed active region 4274 (AR4274). In recent days the region has unleashed multiple outbursts, including a solar flare that ranks as one of the most powerful of the current solar cycle.

The northern lights could be visible from a much larger portion of the northern United States than usual on Tuesday night and Wednesday morning, according to the National Oceanic and Atmospheric Administration, as X-class flares from the sun days earlier impact the Earth.

A series of Coronal Mass Ejections are washing over the Earth, inducing severe geomagnetic storming. The geomagnetic storming is expected to continue into 13 November.