This year, Mr Daren Scerri and I have set up and organized the first Remote Sensing hackathon for MCAST, named RemSen 21. This event started in February till June of this year, during which we trained our IICT degree students in the use of the European Space Agency Copernicus Sentinel-2 satellite data. For the competition, the participants were requested to research topics of local relevance and of environmental importance. Supporting this event was the Ministry for the Environment & Climate Change Planning, Environment & Resource Authority, EIC-Climate KIC Malta and eSkills Foundation Malta. On the 11th of June, we had a half-day seminar during which our participants presented their work. We wish to congratulate all participants: Abigail Vella, Dylan Luke Abela, Eman Paul Abela, Gabriel Gauci, Ismael Scicluna, Kurt Agius, Leonard Bruno, Luke Zammit, Mandy Cortis, Marc Finger, Massimo Darmanin and Robert Meli. Special congratulations go to Ms Mandy Cortis for being recognised with the best overall project for her research in the progress done in Wied Fulija; to Mr Leonard Bruno for being recognised with the best technical development with his research in Maltese coastline erosion; finally to Mr Massimo Darmanin for being recognised with the best impact project for his research in various uses of Remote Sensing in Malta. Our intention is to focus on the Sentinel-2 and Sentinel-5 satellites for RemSen 22. Thank you and well done to all.