Space.com
written by Staff
Monday January 23, 2012
A powerful solar eruption is expected to blast a stream of charged particles toward Earth tomorrow (Jan. 24), as the strongest radiation storm since 2005 rages on the sun.
Early this morning (0359 GMT Jan. 23, which corresponds to late Sunday, Jan. 22 at 10:59 p.m. EST), NASA's Solar Dynamics Observatory caught an extreme ultraviolet flash from a huge eruption on the sun , according to the skywatching website Spaceweather.com.
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Space.com
written by Denise Chow
Tuesday January 24, 2012
A wave of charged particles from an intense solar storm is pummeling the Earth right now, which may trigger stunning aurora displays and cause minor disruptions to satellites over the next two days, NASA scientists say.
The storm began when a powerful solar flare erupted on the sun yesterday (Jan. 23), blasting a stream of charged particles toward Earth. This electromagnetic burst, called a coronal mass ejection (CME), hit Earth at about 9:31 a.m. EST (1430 GMT), according to scientists at the Space Weather Center at NASA's Goddard Space Flight Center in Greenbelt, Md.
"It's a minor to moderate storm," Yihua Zheng, a lead researcher at the Space Weather Center, told SPACE.com. "Probably in the next 10 hours or so, people at high latitudes can see auroras. This could maybe cause communication errors at the polar caps, but the magnetic activities are probably not too strong."
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Space.com
written by Denise Chow
Friday January 27, 2012
A massive solar flare — the strongest one so far this year — erupted today (Jan. 27) from the same active region of the sun that triggered a raging solar tempest earlier this week.
The solar flare was rated an X1.7-class eruption, according to the National Oceanic and Atmospheric Administration (NOAA). X-class flares are the most powerful type of solar storm, with M-class storms falling within the mid-range, and C-class flares being the weakest.
Several spacecraft, including NASA's Solar Dynamics Observatory and the Solar Heliospheric Observatory, observed the solar eruption, which occurred at 1:37 p.m. EST (1837 GMT). The flare unleashed a wave of charged particles, called a coronal mass ejection, but space weather experts said it was not aimed at Earth.
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