We successfully launched a weatherballon with our instrument CHAOSjunior as part of “Highlights der Physik”, a science festival taking place in Kiel. The clear blue sky allowed a launch at around 11:45 am. Many spectators followed the launch and interesting questions were asked, especially by kids. We even had a send-off by a friend and colleague from the Department of Extraterrestrial Physics who accompanied our ballon with his plane. He took the pictures of the balloon from the air. Currently, we are on our way to Rostock to recover CHAOSjunior. Stay tuned for further information on CHAOSjunior and visit our social media channels and the channels of “Highlights der Physik”.