The sun appears to have woken from its slumber with an impulsive X-class solar flare, the most powerful class of solar flare.

Well, that’s a bit dramatic (it explodes a lot) — but a particularly large sunspot named AR2781 produced a C5-class solar flare which ... Ocean and you were using radio frequencies below ...

The sun released an X-class solar flare, triggering radio blackouts in southern Africa. Accompanying the flare was a CME, ...

A sunspot named AR3901 that keeps flinging out M-class solar flares is about to face toward the Earth, putting us in the crosshairs for more flares.

NASA artist's concept of a Voyager spacecraft in deep space (main) and stock image of the solar system (inset). Voyager 1 briefly lost contact with NASA due to a radio issue. NASA artist's concept ...

The Sun has unleashed an intense solar flare, sparking radio blackouts in several parts of Asia and Australia. According to the US Space Weather Prediction Center (SWPC), the solar flare peaked ...

Using this knowledge, a group of ham radio operators used the October 14 solar eclipse to crowdsource an experiment, as part of the Ham Science Citizen Investigation (HamSCI) community.