Four articles published in the journal “Astronomy & Astrophysics” report various aspects of the mapping of the northern galactic plane, which led, among other things, to the discovery of new areas of star formation in the Milky Way. Many researchers collaborated in the analysis of data collected within the GLOSTAR survey, which aims to examine star-forming regions within the galaxy using observations from the VLA and Effelsberg radio telescopes. The data made it possible to obtain the most detailed maps of the northern galactic plane at radio frequencies, which made it possible to identify the new star nurseries.