Sunspot region 4114 has fired off its strongest blast yet — an X1.2-class solar flare that erupted on June 17, triggering ...

The latest solar flare follows an M-class one, the second-highest on the scale, that occurred days earlier on June 15. It ...

The M-class flare was accompanied by a coronal mass ejection currently forecast to land Earth with a glancing blow on June 18 ...

Solar flares are the most powerful explosions in the solar system the biggest ones can have as much energy as a billion ...

A soldier’s most important weapon may wind up being a walkie-talkie-style radio or backpack satellite terminals, Fraser says. Mobile and Wi-Fi networks can become ‘overwhelmed’ in wartime, meaning ...

SWPC map of radio blackouts after yesterday's X2.3-class flare (main) and image of the flare being emitted by the sun (inset, circled). Several more weaker flares have occurred since, ...

The aurora borealis could appear tonight for viewers in the continental United States, including in Minnesota, North Dakota ...

The ongoing solar storm has hit the planet's polar regions, potentially causing a days-long radio blackout, NOAA said on Tuesday. The impact has hit as a "cannibal" coronal mass ejection makes its ...

NASA reports sunspot region 4114 unleashed 2025's most powerful X1.2-class solar flare on June 17, causing widespread ...

Classified as an X2.7 solar flare, the event caused radio blackouts across Europe and Asia, with the Middle East seeing the highest concentration of blackouts, according to the National Oceanic ...

X1.9-class solar flare triggers blackout across Pacific communication No coronal mass ejection seen, so aurora activity remains unlikely Region 4114 shows repeated flaring, indicating high solar activ ...

SWPC map of radio blackouts after yesterday's X2.3-class flare (main) and image of the flare being emitted by the sun (inset, circled). Several more weaker flares have occurred since, ...