Northern lights occur when a solar flare interacts with Earth's atmosphere.

Region 4366 seen on the surface of the sun via NASA's Solar Dynamics Observatory (SDO) spacecraft on Feb. 4, 2026. This ...

The Sun is putting on quite a show right now. Earth-facing sunspot region 4366 has been erupting almost non-stop since it emerged on January 30, producing six X-class solar flares so far.

In a dramatic escalation of solar activity, the sun has unleashed an X8.3 flare — 2026’s strongest yet — causing radio ...

Sunspots AR3664 and AR3663 have been erupting with X- and M-class solar flares. Both sunspots are Earth-facing and could potentially deliver a solar storm. NASA's Solar Dynamics Observatory captured ...

Space watchers are taking a keen interest in the sun’s actions over the last 24 hours. A sun spot, or a temporary, dark, ...