Space weather - page 51

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CME expected to hit later tonight and tomorow

A series of coronal mass ejections (CMEs) en route to Earth from sunspot 1158 will buffet our planet's magnetic field during the next 24-48 hours. NOAA forecasters estimate a 45% chance of geomagnetic activity on Feb. 17th. Image credit: NASA / SDO /

February 16, 2011

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Plasma cloud from X2.3 solar flare headed our way

Plasma cloud from the first X-class solar flare of Solar Cycle 24 (X2.3 on February 15, 2011) is headed our way. It is expected to arrive around February 17. 2011/02/15, at 07:07 UTC - PRESTO-alert: NOAA AR 1158 has produced an X2.3 flare peaking at 01:56 UTC,...

February 15, 2011

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First X-class solar flare of Solar Cycle 24 - X2.3 on February 14, 2011

Earth-orbiting satellites detected an X2.3 solar flare at 01:56 UTC on February 14, 2011. This is the most powerful solar flare in nearly five years, and the first X-class solar flare of Solar Cycle 24. The source was behemoth sunspot 1158. Solar

February 15, 2011