In late summer of 1859, the sun unleashed one of the most powerful geomagnetic storms ever recorded. Auroras normally ...

New research challenges the long-held idea of “geomagnetic saturation,” suggesting Earth’s response to powerful solar storms may continue increasing instead of reaching a natural upper limit.

Our sun is capable of storms far bigger than we’ve ever recorded. Studying the world’s oldest trees suggests we could be due one of these gargantuan events soon ...

Radiation remains one of the biggest threats to astronauts as NASA works toward a moon base. Shielding garments could keep ...

A burst of activity on the sun has raised the odds that the northern lights will be visible well beyond their usual ...

Risks of potentially devastating solar storms may be underestimated, warns a new study. And the effects of extreme space weather on life on Earth may be larger than previously thought, say scientists.

New research led by NASA Goddard found persistent “erroneous measurements” skewing past estimates for how severe geomagnetic storms can get.

A gigantic solar eruption in November 2021 defied expectations. Two spacecraft—Solar Orbiter at 0.85 AU and Wind at 0.98 AU—watched the same coronal mass ejection (CME) as it zoomed through the solar ...

The solar cycle can be irregular, but some patterns might be trackable—enough to provide a heads-up before extreme weather events.

Solar storms brought colorful auroras to unexpected places on Tuesday night, and there could be more to come. Space weather forecasters confirmed that storms reached severe levels, triggering vibrant ...

Space weather forecasters issued an alert on Tuesday for incoming severe solar storms that could produce colorful northern lights and temporarily disrupt communications. In the past few days, the sun ...

A proposed StormWall spacecraft fleet could release gas to weaken solar storms, protecting satellites, power grids and technology, but potentially reducing auroras.