Solar news: Forbush decrease in progress

The definition at Wikipedia: A Forbush decrease is a rapid decrease in the observed galactic cosmic ray intensity following a coronal mass ejection (CME). It occurs due to the magnetic…

Largest space weather storm in at least four years

More solar images at the WUWT Solar Reference Page From the: University of Colorado at Boulder Space weather disrupts communications, threatens other technologies A powerful solar flare has ushered in…

3 CME's headed our way – geomagnetic storminess set for earth

From the NOAA Space Weather Prediction Center, word that our recent X-class (and lesser magnitude) solar flares have released three Coronal Mass Ejections (CME’s) toward Earth: The calm before the…

Earthly cloud similarities seen in solar CMEs

New SDO images show CMEs exploding from the Sun ripples like clouds do on Earth. It looks a lot like this photo, showing the well known Kelvin-Helmholtz instability. =============================================================== From…