The northern lights may be visible in the northernmost U.S. states Monday night as the forecast looks to strengthen Tuesday.

This high-resolution image shows the Sun in ultraviolet light, revealing the Sun’s upper atmosphere, ... [+] the corona. Just published after months in transit and being post-processed ...

The view line will dip even further south on Thursday, with a high chance ... The northern lights are the result of bursts of magnetic energy reacting with Earth’s atmosphere, which often ...