Communications of the Byurakan Astrophysical Observatory (ComBAO) is a peer-reviewed scientific journal, which publishes research in observational and theoretical astronomy/astrophysics and presents recent advances in these fields. It is being published by the NAS RA V. Ambartsumian Byurakan Astrophysical Observatory (BAO) in English in electronic form. The journal publishes original papers, review papers, brief reports, book reviews, special communications, observational and theoretical results in various fields of astronomy and related sciences, and some editorial notes, including anniversaries and obituaries. Under the heading “Legacy”, the renewed magazine will republish some old articles of high value in English. The heading “Guest articles” will bring to the attention of readers the articles of researchers who are not employees of BAO.

ComBAO was founded in 1946 and regularly published in 1946-1990. However, the publication was interrupted because of the economic situation after the disintegration of the Soviet Union in 1991.

Communications of the Byurakan Observatory (Բյուրականի աստղադիտարանի հաղորդումներ, Сообщения Бюраканской обсерватории) Russian version papers of issues ## 1-63 (published in 1946-1990) are available online at Pan-Armenian Digital Library library (https://arar.sci.am/dlibra/publication/319393). Issues of the Yerevan Observatory Bulletin from 1938-1945 are also given.

In 2017, the administration of the Byurakan Astrophysical Observatory decided to recommence publication of the “Communications of the Byurakan Astrophysical Observatory” in electronic form. In order to preserve traditions, the first issue of the new version is given as Issue LXIV (#64).