Add Yahoo as a preferred source to see more of our stories on Google. The sun emitted some of the most powerful solar flares this week, NASA announced. The star emitted three strong solar flares on ...

Space weather has seen a flurry of activity this week. An explosive solar flare that erupted Tuesday, just two days after the sun unleashed one of its most powerful flares, temporarily disrupted ...

A vast, magnetically tangled sunspot has rotated into direct view of Earth, raising the prospect of powerful solar eruptions in the coming days. The active region is large enough to dwarf our planet ...

The sun emitted some of the most powerful solar flares this week, NASA announced. The star emitted three strong solar flares on Sunday, Feb. 1, peaking at 7:33 a.m. ET, 6:37 p.m. ET and 7:36 p.m. ET, ...