Solar flares and other activity can disrupt radio communications, power grids and navigation signals, according to NASA.

The powerful X1.1 solar flare from sunspot region 4298 sparked strong radio blackouts on the sunlit portion of Earth at the ...

On December 8, 2025, at 5:01 a.m. UTC, the sun released a strong burst of energy called an X1.1-class solar flare from a spot named AR4298. This is one of the strongest types of solar flares. The ...

A powerful X1.9 solar flare from new sunspot AR4299 triggered strong radio blackouts, as giant sunspot AR4294 rotates into ...

In the span of two days last week, the sun released two strong solar flares — meaning the solar system experienced its most powerful explosions which can cause some communications blackouts on Earth, ...

Discover what happens during a solar flare: sun eruptions, coronal mass ejection impacts, and space weather effects on Earth ...

The Sun fired a staggering X1.9-class solar flare at the turn of the month, triggering a sudden, widespread radio blackout ...

The Sun unleashed its most powerful solar flare of 2025 on November 11, sending a burst of high-energy radiation speeding ...

"We know from historical observations that significantly bigger events are possible, and we need to be ready," said a researcher.

The solar wind beneath its wings.