The Rozhen National Astronomical Observatory at the Institute of Astronomy of the Bulgarian Academy of Sciences has announced today, June 4, an Open Doors Day. According to tradition, it will be organized on the Christian feast of Pentecost, from 10..
The National Astronomical Observatory Rozhen with the Institute of Astronomy at the Bulgarian Academy of Science has open-door day today, June 12. The event coincides with the Christian feast Pentecost. The Holy Trinity chapel marks its patron..
In today’s world, we have lost connection with the stars and few people only are able to find the most popular constellations in the night sky. However, there are also people who want to learn more about the planets..
