EIRSAT-1, developed by a team of students and staff at University College Dublin through ESA's Fly Your Satellite! programme, has made history as Ireland's first satellite. Over more than six years of work, the mission grew from an ambitious proposal into a fully-fledged spaceflight success story - and an educational inspiration. With a long list of successes behind it and its mission accomplished, the CubeSat has now deorbited. EIRSAT-1 sent its final beacons on 4 September and burned up on re-entry of Earth's atmosphere. The deorbiting occurred in line with ESA's commitment to the sustainable use of space - which includes minimizing space debris and ensuring that missions leave no long-term footprint in orbit.