In 2019, the International Astronomical Union (IAU) is celebrating its 100th anniversary. To commemorate this milestone, IAU100 is organising a year-long celebration to increase awareness of a century of astronomical discoveries as well as to support and improve the use of astronomy as a tool for education, development and diplomacy under the central theme “Under One Sky”. The centennial celebrations will stimulate worldwide interest in astronomy and science and will reach out to the global astronomical community, national science organisations, societies, policy-makers, students, families and the general public. The IAU100 activities will take place at global and regional levels, and especially at the national and local levels.
The International Association of Physics Students (IAPS) is going to contribute to the UNESCO International Day of Light, organising new activities and participating with a delegation of volunteers in the IDL Flagship event at the UNESCO headquarters in Paris, France on 16 May 2018. Twenty-five physics students will meet in the French capital and it will be a truly international delegation, gathering students from seventeen different countries following the UNESCO and IAPS shared goals of integration and cooperation.