On September 28, Håkon Kolstø successfully defended his thesis titled ‘Magnetic reconnection and heavy ions‘! The opponents were Professor Masahiro Hoshino from the University of Tokyo and Gabriella Stenberg Wieser from the Swedish Institute of Space Physics, and the head of the committée was David Sarria from the Birkeland Center for Space Science at the University of Bergen. A great thank you goes out to both the opponents and the committée leader! And last but not least a great congratulations to Håkon! Thank you for your hard an excellent work these last years!