ESA’s Solar Orbiter should solve the longstanding puzzle about why the Sun’s outer corona is so much hotter than its surface.

The Sun emitted a strong solar flare on June 19, peaking at 7:50 p.m. ET. NASA’s Solar Dynamics Observatory captured an image ...

An active region of the Sun, known as sunspot 4114, has just produced an X1.9-class flare. This event, which occurred on June ...

Solar flares are powerful bursts of radiation. Harmful radiation from a flare cannot pass through Earth’s atmosphere to physically affect humans on the ground, NASA claims. However, when intense ...

A powerful X-class solar flare erupted on June 19, disrupting radio signals and potentially setting the stage for geomagnetic ...

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The latest solar flare follows an M-class one, the second-highest on the scale, that occurred days earlier on June 15. It ...

X-class flares are the most energetic class of solar flares, with each step up in number representing a tenfold increase in ...

NASA’s Solar Dynamics Observatory, which watches the Sun constantly, captured an image of the event. The image shows a subset ...

NASA reports sunspot region 4114 unleashed 2025's most powerful X1.2-class solar flare on June 17, causing widespread ...

According to spaceweather.com, the sunspot region 4114 released multiple flares within 24 hours, but they were in the M-class ...

The sun has blasted a powerful X ray towards Earth, which caused blackouts over the Pacific, including Hawaii. There is more ...