An article published in the journal “Astronomy & Astrophysics” reports the first case of high-resolution infrared observations of the internal areas of 15 protoplanetary disks performed by combining the four telescopes of the ESO VLT interferometer in Chile. A team of researchers led by Jacques Kluska of the Katholieke Universiteit Leuven in Belgium used the PIONIER instrument to achieve this result, which also shows traces of planetary formation. This type of observation offers new information on this process.