The massive sunspot that sparked an "extreme" geomagnetic storm in May 2024 unleashed hundreds of other dangerous solar ...

Colorful auroras could appear again soon over parts of the United States — including northern and upper Midwest states from New York to Idaho — due to a solar storm that may affect Earth, according to ...

A single patch on the Sun recently stayed hyperactive for 94 straight days, hurling flare after flare into space and setting ...

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 ...

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, ...

An international team of researchers tracked the active solar region using the Solar Orbiter spacecraft, a joint NASA and ...

On May 29, 2020, a family of sunspots — dark spots that freckle the face of the Sun, representing areas of complex magnetic fields — sported the biggest solar flare since October 2017. Although the ...

Sunspot AR3590, which recently spit out three X-class solar flares in under 24 hours, has grown even larger and is now pointed almost directly at Earth, putting us in the crosshairs of more potential ...

Astronomers have detected a massive group of sunspots being referred to as a "sunspot archipelago." The group is made up of at least six different sunspots, and astronomers warn it could spell trouble ...

BOULDER–Challenging conventional wisdom, new research finds that the number of sunspots provides an incomplete measure of changes in the Sun’s impact on Earth over the course of the 11-year solar ...

A whopping sunspot that is getting larger and crackling with activity threatens to flash powerful solar flares in our planet's direction. The sunspot, named AR3780, appears to be getting bigger and ...