Space weather has seen a flurry of activity this week. An explosive solar flare that erupted Tuesday, just two days after the ...

A new sunspot group has quickly grown and is spewing out the most intense type of solar flare. Effects on Earth are forecast ...

Solar flares are intense bursts of radiation that occur on the Sun's surface, resulting from the release of magnetic energy associated with sunspots. These flares can vary in intensity, and their ...

NASA says the energy from a flare travels at the speed of light. Therefore, a flare can be seen from Earth about 8 minutes ...

The sun has emitted several solar flares in recent days, putting space-weather experts on the lookout for northern lights ...

Scientists say this powerful surge in solar activity could set the stage for the northern lights to appear as early as ...

The sun emitted some of the most powerful solar flares this week, NASA announced.

For instance, the X8.3 flare peaked at 6:57 PM EST, unleashing a torrent of ultraviolet and X-ray radiation that impacted the Earth’s upper atmosphere. Such intense solar activity can create a cascade ...

Fired from a vast sunspot, the "coronal mass ejection" is expected to reach Earth on either Thursday or Friday this week.

NASA's Solar Dynamics Observatory captures a strong X1.5 solar flare erupting from the Sun, emitting extreme ultraviolet ...

Space scientists have announced that the Sun has fired four massive solar flares. The outbursts were captured by NASA’s Solar ...