The flare – deemed an X8.7, with the X-class denoting the most intense flares possible – came from the same region that triggered the geomagnetic storm and stunning display of auroras, or ...

Officials said on Tuesday that the sun just emitted another major solar flare – and that it's the strongest one so far in the current solar cycle. The latest flare peaked just before 1 p.m. ET ...

A covert sunspot partially hidden behind the sun's southeast limb unleashed a powerful M9.6 class solar flare on May 16 at 12:43 p.m. EDT (1643 GMT). Though the sunspot wasn't facing Earth ...

The sun has once again unleashed a powerful solar flare, continuing its streak of intense activity. On April 1, at 2:46 a.m. EDT (0646 GMT), an M5.6-class flare erupted from sunspot region AR4046 ...

The sun produced a powerful “X1-class” solar flare Sunday through Monday, according to NASA. It caused a radio blackout for 30 minutes in the Pacific Ocean and the western US, according to ...