Space Weather, Solar Flares & Sun Storms: Latest News

See our amazing collection of stories and features about the increasingly important topic of space weather (aka solar storms).
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Giant Sunspot Keeps Firing Off Huge Solar Flares
X2-class solar flare
October 27th, 2014
The largest sunspot observed on the sun in more than 20 years has been firing off powerful solar flares for the past week, and it's still producing strong solar storms.
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Megasunspot's Solar Outbursts Surprise Scientists
'Supersunspot' AR2192 Flares
November 11th, 2014
A humongous sunspot — the biggest one seen since 1990 — has so far produced no aurora-causing events, despite sending off 10 huge solar flares in less than two weeks.
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Huge Solar Flare Erupts from Biggest Sunspot in 24 Years (Photos)
A massive X3.1 solar flare erupts from the giant sunspot AR 12192 on Oct. 24, 2014 in this close-up view from NASA's Solar Dynamics Observatory, a spacecraft that constantly watches Earth's nearest star.
October 25th, 2014
The sun unleashed a major solar flare from a colossal sunspot on Friday (Oct. 24), the fourth big flare from the star in less than a week. The sunspot is the largest active region on the sun in the last 24 years, NASA scientists say.
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Weak Sun Poses Radiation Risk for Mars-Bound Astronauts
Illustration of Heliosphere
November 8th, 2014
A weakening sun will more easily push Mars-bound astronauts beyond standard NASA radiation safety limits, putting them at increased risk for cancer, a new study warns.
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Largest Sunspot in 24 Years Wows Scientists, But Also Mystifies
Jupiter-sized sunspot AR 12192
November 3rd, 2014
The biggest sunspot to grace the face of the sun in more than two decades is rotating out of view, but it was responsible for kicking up some truly amazing solar activity this week.
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