Arcticles about the northern lights both for beginners and nerds. Information about kp-index, Interplanetary magnetic field, plasma and solar speed and how all of these affect the aurora show. 
These arcticles are written by professional northern lights guides.

Arcticles about best practise when doing photography of aurora borealis or the northern lights. Advise on camera , lenses, aperture, iso and shutter speed. 
These arcticles are written by professional photographer.