On February 14, DANS organised an open day on Open Science, Researchdatamanagement, data-archiving, and data re-use. The event was a collaborative effort of the young academy (Jonge Akademie KNAW), Promovendi Netwerk Nederland, the RDA National Node, and the European project OpenAIRE. More than a 100 people visited the information market and participated in open discussions, making the day a huge success.