Latest about The sun
The sun fires off 2 powerful X flares in less than 2 hours (video, photo)
Add another pair of strong solar flares to the sun's list this year, as two X-class flares erupted on Monday morning (Aug. 5).
Magnetic fields on the sun could solve longstanding solar heating mystery
A new study reveals waves of magnetism within the sun could help explain why the sun's outer atmosphere, the corona, is hundreds of times hotter than its surface.
Renaissance astronomer Tycho Brahe's lab is home to a centuries-old chemical mystery
A chemical mystery lurks in the laboratory of Tycho Brahe, one of the most famous astronomers of all time. Scientists found tungsten in Brahe's lab, and they're not sure how it got there.
These 17th-century drawings of the sun by Kepler add fire to solar cycle mystery
Earth was cooler than usual in the 16th and 17th centuries and scientists are still trying to figure out why. New analysis of sunspot drawings by Kepler, in 1607, may shed some light.
Watch a colossal X-class solar flare erupt from Earth-facing sunspot (video)
An X-flare erupted from the sun at 10:33 p.m. EDT on July 28 (0233 GMT July 29). Watch the action unfold here.
Sun blasts out most powerful flare of current solar cycle, sends massive coronal mass ejection into space (video)
A solar flare on July 23 was even bigger than a previous one that triggered May's global aurora storm, but this one was facing away from Earth on the far side of the sun.
These 2 US cities are the most vulnerable to solar storms, scientists say
Geomagnetic storm-induced blackouts may be looming.
Aurora alert: Possible geomagnetic storm could bring northern lights as far south as New York
Northern lights could be visible over some northern and upper Midwest states on July 24. A geomagnetic storm watch has been issued by NOAA's Space Weather Prediction Center.
