Geomagnetic storming levels back to normal

Geomagnetic storming levels back to normal

Geomagnetic storming reached the G2 (Moderate) level at high latitudes again early today. Bright auroras could be seen around Arctic Circle. It was sparked by one of two coronal mass ejections observed on September 2.  Solar radiation storm levels have returned to

Sun produced a series of strong shortwave radio bursts

Sun produced a series of strong shortwave radio bursts

On July 7th, the sun produced a series of strong shortwave radio bursts. Click on the dynamic spectrum below to play a 21 MHz sample recorded by amateur radio astronomer Thomas Ashcraft in rural New Mexico. The action begins about 18 seconds into the 2-minute…