Online Observatory was an EU Ersamus+ programme run by Prof. Paul Roche (Cardiff University and formerly Faulkes Telescope Project) whose main aim was to strengthen the interests of school students to study natural sciences by developing interests in astronomy.

The project ran from October 2018 to September 2020, and developed resources and training for teachers, as well as activities for school students. These included adaptations and updates of existing FT materials and several new activities.

OO was a collaboration of five European observatories with key interests in making astronomy accessible for young students.