What will occur on the Earth when a sunspot with the size of approximately 6.5 Earths begins to release successive X-class ...

The four X-class solar flares in about a day is a rate that makes even a typical sunspot pass a near-Earth space stress test ...

Sun Region 4366 has produced dozens of solar flares since Jan. 30, "putting on quite a show," says Slooh President and ...

This cluster of sunspots has produced more than 60 solar flares, including several that could spark colorful auroras across ...

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.

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

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

The sun’s active sunspots—which are the cause of recent Northern Lights sightings in the U.S.—may erupt a few solar flares this weekend, and scientists recommend using solar eclipse glasses to see how ...

NASA has detected a large grouping of sunspots — dark patches on the sun — known as AR3576, which have increased in size in the last month and could be a risk for strong solar flares. Solar flares, ...

Observing an eclipse of the sun is always fascinating, but on March 29, 2025 — when a partial solar eclipse is visible in the Northern Hemisphere — there will be an extra reason to do so. As well as ...