After a calm week, the sun erupted again. A powerful M5.1 solar flare burst from an emerging sunspot region, shaking the ...

Activity on the sun is not constant; it varies along a cycle of about 11 years. The peak of this solar cycle — called solar maximum — is when sunspots, solar flares and coronal mass ejections (CMEs) ...

A coronal mass ejection (CME) from the Sun is expected to reach Earth on Thursday, Oct. 16, potentially triggering a G2 geomagnetic storm Just after sunset, auroras could be visible across parts of ...

Has the Sun’s activity increased or decreased in the last few years? This is what a recent study published in The Astrophysical Journal Letters hopes to address as a team of scientists investigated ...

Some states in the northern U.S. might have an opportunity to see the northern lights Tuesday, and recent solar activity may make the phenomenon visible in more states later this week, according to ...

Geomagnetic storms brought the northern lights to much of the U.S. on Tuesday night, painting the sky in vibrant hues of green and pink. "Well, we had activity tonight — a lot of geomagnetic storm ...

Strong geomagnetic storms brought colorful northern lights to the skies above many states on Tuesday night, including Missouri and Kansas. Forecasters are expecting more on Wednesday. Geomagnetic ...

Geomagnetic storms brought the northern lights to much of the U.S. on Tuesday night, painting the sky in vibrant hues of green and pink. "Well, we had activity tonight — a lot of geomagnetic storm ...

Thanks to recent solar activity, parts of the northern states could be treated to a stellar light show as of Oct. 16 Patrick Pleul/picture alliance via Getty A coronal mass ejection (CME) from the Sun ...