Space has always been a subject that has attracted both ordinary people and scientists seeking a deeper understanding of the vastness of the cosmos. The year 2021 was a special year for Lithuania as we finally became an Associate Member of the European Space Agency. This is the right time to give the space theme an extra focus: to link and highlight Lithuania's achievements in space technology, to showcase related research centres and to showcase the contributions of scientists of Lithuanian origin, which are mostly unknown to the general public. The second piece of the space puzzle is the Molėtai Museum of Ethnocosmology, the only one of its kind in the world, which is located not far from Vilnius. The essence of the museum is the relationship between man and mankind and the cosmic world. The third element of this mobile application is the archaeological, historical, and natural sites all over Lithuania, which are related to cosmology, the cosmos and its observation.