See our amazing collection of stories and features about the increasingly important topic of space weather (aka solar storms).
A blaze of solar plasma emerges from the surface of the sun in this photo taken of the International Space Station (ISS) as it transited the sun's disk on June 14, 2017.
Active Region 2673 blasted out yet another solar flare early this morning (Sept. 8), its sixth intense burst of high-energy radiation since Monday (Sept. 4).
An active, sun-spotted region of the sun that unleashed powerful solar flares earlier this week fired two more significant solar flares this morning.
The sunspot that is likely responsible for a monster solar flare that exploded into space yesterday is visible to skywatchers with a pair of solar-viewing glasses.
Early this morning (Sept. 6) the sun released two powerful solar flares — the second was the most powerful in more than a decade.
What's powering the powerful auroras at Jupiter's poles? New results suggest it's not the same mechanism powering the most energetic auroras on Earth, contrary to scientists' expectations.
People as far south as Ohio and Indiana may be able to see the northern lights Wednesday night (Sept. 6), thanks to a powerful sun storm.
On Oct. 14, 2014 the Sun blew off a coronal mass ejection (CME) and was detected by the Solar and Heliospheric Observatory (SOHO) and other NASA/ESA probes.
A gorgeous new video shows a giant sunspot rotating across the sun's face, firing off flares and an eruption of superhot plasma known as a coronal mass ejection (CME).
A strange radio signal that seemed to emanate from a small nearby star probably came from Earth-orbiting satellites, astronomers said.
After a coronal mass ejection from the sun hit Earth's magnetic field on Sunday (July 16), space weather forecasters predict that geomagnetic storms may cause some intense auroras this evening.
Strange radio signals have been spotted coming from the vicinity of a nearby star — but don't get your hopes up that aliens are responsible.
Is our sun fundamentally different from other "sun-like" stars? This question highlights an ongoing controversy about whether our nearest star is unique or, in fact, an "ordinary star."