Bulgaria must become a full member of the European Space Agency, students wrote in an open letter to this country’s President Rumen Radev on occasion of the International Day of Aviation and Cosmonautics marked on April 12. The young Bulgarians..
On Occasion of the International Day of Aviation and Cosmonautics marked on April 12, Bulgaria’s first cosmonaut Georgi Ivanov called for stoicism, self-discipline and optimism during the days of social isolation. Many cosmonauts worked for six..
