Julian gives a primer on sunspots -- what causes them, how often they happen, and most importantly: whether or not an enormous one is set to fire straight at Earth.
Eruptions on the sun's surface are probably caused by giant, unstable magnetic plasma arches, a new study reports — a discovery that brings scientists one step closer to predicting solar outbursts that can wreak havoc on Earth.
A huge arc of plasma has been imaged rising from the sun's surface by a NASA solar observatory, producing a beautiful view of the sun's magnetic dynamics in action. Continue reading →
At 1:46 p.m. ET (17:46 UT) on Wednesday, the sun reminded the solar system that it hasn't finished with solar maximum quite yet -- it unleashed a powerful solar flare and aimed it right at Earth. Continue reading →
And barely an hour apart from each other, too! Continue reading →
NASA's Interface Region Imaging Spectrograph watched a magnetic eruption in the solar corona, giving us the most intimate view of the creation of a CME yet. Continue reading →
For the first time, a massive solar flare revealed the process that created it, confirming new theories about flares and the explosive ejections of solar material often linked with them.
As the recent X4.9-class flare ripped across the surface of the sun, a fleet of solar observatories were ready to measure its impact.
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