Thursday may be the last day people in the northern U.S. could see the phenomenon this week, forecasters said.

A strong geomagnetic storm will make the northern lights visible in many U.S. states on New Year's Eve. According to the United States ... which will keep the night sky exceptionally dark overnight.

The northern lights could also be visible Tuesday night in parts of Washington, Idaho, Montana, North Dakota, South Dakota, ...

Eight northern U.S. states may be able to see the northern lights Sunday night, according to a forecast from the National ...

A minor-to-moderate geomagnetic storm may produce a strong northern lights show in some of the northernmost U.S. states ...

For celestial enthusiasts, the past several days have been a celebration of the night. This week is International Dark Sky Week. Founded in 2003 by Jennifer Barlow, then a 15-year-old high school ...