site.btaRSV 421 Departs on Fourth Antarctic Voyage, BTA to Cover Expedition
Bulgaria’s naval research vessel Sv. Sv. Kiril i Metodii (RSV 421) set sail from Varna on Friday on its fourth Antarctic expedition, with BTA once again sending a correspondent to cover the mission. The ship is expected to reach the Bulgarian Antarctic Base on Livingston Island at the end of December after port calls in Argentina and Chile, and the crew is due to return in mid-April 2026. During the expedition, the researchers will conduct geological and oceanographic studies, including work on rare earth elements, sea level changes, and glacier melting in cooperation with a German institute from Hamburg. The mission will also reach the Antarctic Peninsula for the first time, Bulgarian Antarctic Institute President Prof. Christo Pimpirev said, emphasizing that Bulgaria now conducts advanced scientific research comparable to leading nations.
At the send-off ceremony, President Rumen Radev, in a congratulatory message read by Vice Admiral Mitko Petev, praised Bulgaria’s Antarctic expeditions as “a symbol of professionalism and dedication,” noting the participation of scientists from partner countries including Romania, Greece, Montenegro, the UAE, the USA, Germany, Portugal, Colombia, and Ecuador. Fleet Admiral Kalin Kalinov, head of the Nikola Vaptsarov Naval Academy, thanked Education and Science Minister Krasimir Valchev for supporting the acquisition and continued readiness of RSV 421, and announced plans for a conference on Antarctica as part of the Academy’s 145th anniversary celebrations in 2026.
BTA Director General Kiril Valchev confirmed that Bulgaria’s national news agency will again have a correspondent on board RSV 421, continuing its tradition since the vessel’s first voyage in 2022. Previous correspondents Konstantin Karagyozov, Emil Granicharov, and Milena Ostrovska provided daily reports, photos and videos, which are accessible in BTA’s special #Bulgaria–Antarctica section. Valchev highlighted that BTA also operates National Press Clubs on the ship and at the St. Kliment Ohridski Base on Livingston Island, offering media access to scientific research and helping to promote Bulgarian science internationally.
Prof. Pimpirev stressed the partnership of Bulgarian polar scientists with the Navy, noting that without the fleet, the country would not have acquired a modern Antarctic base. He called the expedition an example of Bulgaria’s scientific continuity and achievement, describing Antarctica as a “White Mars” where the new laboratory will support research across multiple disciplines.
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