Scientists may have discovered when and how high-energy particles that bombard Earth emerge from violent environments, such as the sun's atmosphere.
See our amazing collection of stories and features about the increasingly important topic of space weather (aka solar storms).
An active sunspot that is just about to exit the visible disk of the sun shot its parting flare at Earth, causing a radio blackout in Africa and the Middle East Friday morning.
Solar Orbiter's measurements of the environment around Venus might help explain how the scorched planet's atmosphere changes over millions of years.
Venus is being hammered by wild space weather this week after a giant sunspot, not visible from Earth, expelled an enormous plasma burst toward the scorching-hot planet.
A Michigan-based aurora chaser got an unexpected treat last night when an aurora-like ribbon of glowing stripes paraded just above his head.
The sun-exploring Solar Orbiter spacecraft came face to face with a massive eruption of plasma from the sun, just ahead of a pivotal flyby of Venus.
Violent activity on the sun last week resulted in stunning views for observers in the northern hemisphere over the weekend.
Could a solar storm ever destroy Earth? According to scientists, there's no evidence that any solar weather has ever harmed a human.
Space weather watchers observed a series of powerful flares between Aug. 27 and Aug. 29, the most powerful of which registered as a moderate M8-class flare.
Italian astronaut Samantha Cristoforetti reveals breathtaking new auroral images from the International Space Station.
International satellite services firm Intelsat has lost control of one of its broadcast satellites after it was presumably disabled by space weather.
A once-tiny spot on the sun's surface grew over the weekend to the size of Earth. It may end up launching some flares and solar eruptions our way.
For 400 years sunspots have been used to measure the sun's cycle, but a newly suggested 'circle of fifths' system could predict dangerous and violent solar events years in advance.
Auroras shone in many polar regions last night following a moderate-sized solar storm. And more might be coming after a more recent sun eruption.
A strong geomagnetic storm may hit Earth on Thursday (Aug. 18), triggering stunning aurora displays farther away from the polar regions than usual.
The sun has spat out two clouds of plasma in the past two days, which might trigger beautiful aurora displays observable as far south as New York later this week.
A surprise solar storm bashed Earth on Aug. 7 and 8, triggering an appearance of the mysterious glowing phenomenon called STEVE.