Over 150 people visited Dunsink Observatory to view the historic observatory buildings, which were once the home of Sir William Rowan Hamilton, world renowned mathematician and scientist. They also viewed the magnificent Victorian engineering of the South telescope and dome, and heard the remarkable story of the Dublin company, Grubb Telescope Company, that became one of the greatest telescope makers in the world. There was a workshop for children on comets and participants learned about the European Space Agency‘s Rosetta mission to comet 67/P Churyumov-Gerasimenko later this year. The talks for adults focused on the origins of the Solar System and shooting stars. Visitors also viewed samples of meteorites which the IFAS had on display for the evening.