Astronomy & Astrophysics National Radio Astronomy Observatory European Space Astronomy Centre Mullard Radio Astronomy Observatory Small Astronomy Satellite 3 Surabaya Astronomy Club Submillimeter Wave Astronomy Satellite Astronomy Picture of the Day High Energy Astronomy Observatory 1 High Energy Astronomy Observatory 3 Inter-University Centre for Astronomy and Astrophysics Small Astronomy Satellite 2 Epos (astronomi)