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

This Feb. 4, 2026, image from NASA's Solar Dynamics Observatory (SDO) captures a strong solar flare erupting from the star.

On February 4, 2026, the Sun unleashed an intense X4.2 solar flare, sparking significant radio blackouts across parts of ...

The flares are coming from a solar region that was created in late January.

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

The sun is experiencing a violent solar storm, releasing one of the strongest solar flares seen in the past 30 years ...

Solar flare triggers tech blackouts as X8.11-class eruption disrupts GPS, streaming, and satellite services ahead of incoming ...

Multiple M-class and X-class solar flares erupted within 24 hours as an active sunspot released intense radiation affecting ...

A surge of solar activity could trigger auroras.

Space weather has seen a flurry of activity this week. An explosive solar flare that erupted Tuesday, just two days after the ...

A newly active area on the sun is responsible for dozens of eruptions known as solar flares, including back-to-back X-class ...

Close-up observations of the Sun explain how solar flares start, grow, and send high-energy particles racing through space.