The northern lights are best seen between 10 p.m. and 2 a.m. local time while at a high vantage point away from light ...

The gigantic coronal hole is blasting high-speed solar wind toward Earth, potentially igniting vibrant auroras and minor ...

Solar material is gusting out of the dark patch in the Sun's corona towards Earth at more than a million miles per hour.

The aurora borealis is back and is expected to be visible in more than 10 states. See which states will have the best views.

Have you hoped to see the northern lights shine over Iowa? You may have a chance tonight if you head far enough north.

A coronal mass ejection earlier this week may pull the northern lights to more northern U.S. states, forecasters said.

Aurora borealis is often associated with solar flare increases because the solar material collides with our planet’s magnetic atmosphere. When this happens, the sparkling light effect in the sky ...

Another geomagnetic storm means another chance for some lucky Americans to witness the northern lights this week after the second largest solar flare of the current cycle was observed Tuesday. The ...

As the sun geared up to spit a powerful solar flare into space, NASA scientists snapped huge loops of plasma leaping from the sun's surface. These spectacular solar structures, known as coronal ...

San Francisco solar energy software company Aurora Solar is shedding staff again. The startup plans to let go 58 people based at its headquarters at 153 Kearny St., it alerted state employment ...

SAN DIEGO — A new study reveals that the Sun may give us advance notice before unleashing powerful solar flares, potentially providing crucial hours of warning before these massive eruptions disturb ...

Rheumatoid arthritis (RA) is a form of arthritis and an autoimmune disease. An RA flare, also known as an exacerbation, occurs when a person experiences transient worsening of their rheumatoid ...