Add Yahoo as a preferred source to see more of our stories on Google. An image taken by NASA’s Solar Dynamics Orbiter spacecraft shows a powerful solar flare produced on May 11, 2024, during a spate ...

BOULDER–Challenging conventional wisdom, new research finds that the number of sunspots provides an incomplete measure of changes in the Sun’s impact on Earth over the course of the 11-year solar ...

The giant solar explosions of energy and light aren't over yet. 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 ...

A new 11-year cycle of heightened solar activity, bringing with it increased risks for power grids, critical military, civilian and airline communications, GPS signals and even cell phones and ATM ...

The sunspot region 4366 fired off dozens of powerful solar flares in 24 hours, including the single strongest flare since ...

"The reason we are seeing them so far south and with so much intensity is that as the sun reaches its maximum activity it ...

The sun has just fired off an eruption so intense it ranks among the most powerful solar flares seen in three decades, a jolt ...

A whopping sunspot that is getting larger and crackling with activity threatens to flash powerful solar flares in our planet's direction. The sunspot, named AR3780, appears to be getting bigger and ...

WASHINGTON — When the sun sneezes, it's Earth that gets sick. It's time for the sun to move into a busier period for sunspots, and while forecasters expect a relatively mild outbreak by historical ...

People in the U.S. were treated to stunning auroras last week when a powerful geomagnetic storm pushed the celestial displays as far south as Florida and Mexico. The spectacle was particularly ...