DSCOVR has reached the halfway mark to L1
Probably one of the most important means in forecasting short-term space weather effects is the NASA’s Advanced Composition Explorer (ACE) satellite. It …
Solar Eclipse success!
The solar eclipse was a success in Tromsø. Although we did not get a total eclipse here, but only 95 %, it …
Total solar eclipse – 20 March 2015
As probably most of you already know, tomorrow morning 20 March 2015 there will be a total solar eclipse! Let’s see what …
Storm Sudden Commencement
This morning a few minutes after UT 04.00 a very clear jump in the solar wind speed as well as the interplanetary …
All-Sky camera
A common tool in auroral science is the all-sky camera. This is simply a camera fitted with a fish-eye lens and pointed …
Auroral forecasts!
I am now happy to say that all planned auroral forecast modes are implemented on their respective PCs. From right to left …
Venerable, geomagnetic Observatories
When geomagnetic measurements have been going on for almost a century in the same location, all sorts of historic treasures can be …
Solar event and its effect on the ground in Scandinavia
Yesterday (24. August) there was an X-ray event on the sun. Such events ionize the dayside ionosphere above “normal” levels and may …
Early Space Weather
I wasn’t entirely sure about what to write about today, so I decided to post a picture: During the 1st International Polar …
An Alarm Bell for Aurora
The World’s first auroral observatory was built by Kristian Birkeland in 1899 on the mountain Haldde just west of Alta in Northern …