After weeks of reduced activity, the sun erupted with three powerful flares on a single day. That could send solar flares ...

After more than three weeks without a powerful solar flare, the sun has suddenly ramped up its activity, firing off three ...

Sunspot AR3767 erupted with a X1.7-class solar flare, followed by an X1.1-class flare from sunspot AR3780. NASA's Solar ...

A 'killer' solar flare could potentially disrupt Earth's technology and life, but the chances of a flare large enough to ...

NASA's Solar Dynamics Observatory captured sunspot AR3386 blast a long-duration X1.6-class solar flare. See at time-lapse of ...

The M4.4 solar flare unleashed a coronal mass ejection (CME) into space — and Earth might just receive a glancing blow.

An active sunspot could give photographers another reason to photograph the night skies this weekend. A solar flare that hit ...

In May 2024, the largest solar flare since 2017 was detected, ranking at an X-8.7 magnitude. Then in 2025, a flare May 13 was classified as an X-1.2 , and another the next day was listed as an X-2.7.

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