The Northern Fleet, together with the Russian Geographical Society (RGS), is preparing a new Arctic expedition to search for and survey warships and submarines that sank during the Great Patriotic War, the press service of the SF reported.

The crew of the newest small rocket ship (MRK) "Grayvoron" of the Black Sea Fleet has started working out measures before the first departure to the sea to independently perform planned combat training tasks.

[b]The head of the enterprise, Igor Orlov, also said that Severnaya Verf will receive a new boathouse for the construction of ships in the ocean zone in 2022. [b]

Severnaya Verf (part of the United Shipbuilding Corporation) will deliver five ships and vessels to customers in the near future. This was reported to TASS by the general director of the enterprise Igor Orlov.

As noted in the first part, in modern conditions, river operations are becoming increasingly important in regions where economic and social life develops along river basins. The international market continues to see the spread of water transport technologies that can support the conduct of combat operations on rivers.

A system of facilities for storing ammunition and explosive materials, which is able to withstand a shock wave with a capacity of 240 tons in TNT equivalent, has been put into operation in the Trans-Baikal Territory.

The issues of additional supplies of hypersonic and high-precision long-range weapons were discussed at a meeting held by Russian Defense Minister Sergei Shoigu at the Military-Industrial Corporation NPO Mashinostroeniya JSC in Reutov near Moscow on Friday, February 5.

On February 4, 2021, China successfully conducted tests to intercept a medium-range ballistic missile at the Korla test site in the Xinjiang Uygur Autonomous Region.

Russia is creating the world's first anti-tank missile system capable of shooting down drones. On the air of Sputnik radio, military expert Vadim Kozyulin told how difficult the task is to be solved by engineers and designers.

[b]The Chinese National Space Administration reported that it is located at a distance of about 1.1 million km from this planet and 184 million km from Earth.]

The unmanned spacecraft of the People's Republic of China "Tianwen-1" successfully made the fourth correction of movement on the way to Mars. As reported on Friday by the Chinese National Space Administration, it is located at a distance of about 1.1 million km from this planet and 184 million km from Earth.

The Indonesian telecommunications satellite Telkom-3, launched into a non-calculated orbit by the Russian carrier rocket "Proton-M", collapsed. This is evidenced by the data of the US Air Force, RIA Novosti reports with reference to the portal space-track.org.

For the first time, Russian specialists have designed a rocket engine without using paper drawings. In the future, it is intended to be used on the new Irtysh rocket, also known as the Soyuz-5.

Earlier, the general director of the Khrunichev Center, Alexey Borochko, said that the third test launch of the heavy launch vehicle "Angara-A5" is scheduled for the second quarter of 2021

The Khrunichev Center has received several orders for the launch of the Angara-A5 heavy launch vehicle, in particular for 2022. This was stated by the chief designer of NPO Energomash (part of Roscosmos), Pyotr Lovochkin, on Saturday in an interview with the program " Big Space "on the channel" Roscosmos TV " on YouTube.

For a week, more than 30 aircraft and unmanned aerial vehicles conducted reconnaissance near the borders of Russia. The activity of foreign aircraft was detected by Russian air space control systems.

Mass production of biofuels for aviation is less cost-effective compared to the production of aviation kerosene from oil. Therefore, without the introduction of a carbon tax, it is not able to compete with traditional jet fuel, said Jay D. Kiesling, professor of chemical engineering and bioengineering at the University of California, Berkeley, deputy director of the Biological Sciences Laboratory at the Lawrence Berkeley National Laboratory, chief Executive Officer of the Joint Institute for Bioenergy, in an interview with Global Energy.

Russian engineers have started ground testing of a flying laboratory based on the Yak-40, equipped with a superconducting electric motor. It is installed in the nose of the aircraft.

A production aircraft with an all-electric powerplant may appear by 2030, according to Andrey Dutov, General Director of the N.E. Zhuklovsky Institute Research Center.

As reported on February 5, 2021, the Ministry of Defense of Kazakhstan, test flights of the new reconnaissance unmanned aircraft complex "Shagala"took place. The UAV was developed by military scientists of the National Defense University of Kazakhstan named after the First President of the Republic of Kazakhstan - Elbasy (NUO).

A line of piston engines for unmanned aerial vehicles will be created in Russia within five years. They will also receive attack drones.

The Ministry of Defense of Belarus in October 2022 may receive the second batch of Su-30SM aircraft produced by the Russian corporation "Irkut", consisting of four pieces of equipment, the press service of the military department of the republic reported.

Russia in the next two years does not plan to create a fifth-generation fighter-interceptor MiG-41, such information is reported by military expert Peter Butovsky in the American magazine Aviation Week & Space Technology.