A cosmic explosion known as GRB 250702B is by far the longest gamma-ray burst astronomers have ever seen—if it’s even one at ...

In the wake of the solar flares, the National Oceanic and Atmospheric Administration’s Space Weather Prediction Center ...

The back-to-back eruptions caused radio blackouts across two hemispheres as the active sunspots turn to face Earth.

An X1.8 flare has erupted from a cluster of sunspots designated as AR 4274. This is the first eruption of this intensity in ...

A massive comet known as 3I/ATLAS that was first discovered zooming across the solar system over the summer showed signs of ...

Astronomers observed a massive, multi-temperature plasma eruption from a young Sun-like star, revealing how early solar ...

A global team observed a massive plasma burst from EK Draconis, showing how early solar storms may have shaped young planets.

Ah, the tech world. It's a bit like a high-speed roller coaster ride—one moment you're on top of the world, the next you're ...

These young-star outbursts likely have tremendous power to strip away or alter the atmospheres of nearby planets. Until now, scientists could only measure the cooler parts of these stellar explosions, ...

This article originally published at Spooky Sun 'smile' hides a powerful surprise for Earth.

From communications outages to a brush with nuclear war, solar events like flares and coronal mass ejections have shaped ...

A solar eclipse unsettles the natural world in ways you might not expect. As the moon crosses paths with the sun, the sudden ...