3 months, 1 week ago
Coastal Ham Radio
At the end of October, a hole in the sun’s atmosphere lashed Earth’s magnetic field with solar wind, sparking moderately-strong geomagnetic storms and almost a full week of Arctic auroras. 52 more words
4 months ago
The sun has looked remarkably blank lately, with few dark cores interrupting the featureless solar disk. This is a sign that Solar Minimum is coming. 8 more words
4 months, 1 week ago
On November 5th, a magnetic filament on the sun became unstable and erupted.
The blast opened a fiery canyon in the sun’s atmosphere and hurled a CME toward Earth. 47 more words
4 months, 2 weeks ago
A large coronal hole is turning toward Earth, and it is spewing a stream of high-speed solar wind into space.
NOAA forecasters expect the stream to reach our planet on Oct. 48 more words
5 months ago