The logical continuation of the International Space Station (ISS) project will be the creation of international bases on the Moon and on Mars, according to SpaceX founder Elon Musk.

During flight tests of the new Russian remote sensing spacecraft "Arktika-M", scientists of the Russian Space Systems Holding (RKS, part of the State Corporation "Roscosmos") tested the possibility and confirmed the effectiveness of using the satellite's target equipment for operational monitoring of volcanic activity, the RKS press service reported.

For 2021, Roscosmos has planned six priority works, in particular three research works

The program for the creation of a multi-satellite group "Sphere" has been submitted to the Government for consideration. This was reported to journalists at the educational marathon "New Knowledge" by the executive director of Roscosmos for advanced programs and science Alexander Bloshenko.

[b]Executive Director of the Corporation for Advanced Programs and Science Alexander Bloshenko said that the tug will fly on ion engines, and not on chemical fuel.]

The executive director of Roscosmos for advanced programs and Science, Alexander Bloshenko, suggested at the forum "New Knowledge" that future orbital stations will be built on the same principle as the transport and energy module "Zeus" (nuclear tug).

In June, Roscosmos will present a draft lunar program using the Angara-A5V rocket instead of the superheavy Yenisei, and the decision on the specific configuration will be made by the country's leadership, Alexander Bloshenko, executive director of the state Corporation for Science, told Interfax.

Sergey Kud-Sverchkov also reported on how experiments on the study of ENT organs were conducted

Spirulina algae can be used as a biological element to restore the atmosphere, it was experimentally grown during an expedition to space, Russian cosmonaut Sergey Kud-Sverchkov said on Saturday at the New Knowledge marathon.

Roscosmos does not rule out continuing participation in the ISS project after 2025, the decision is up to the president, Alexander Bloshenko, executive director of the state Corporation for Science, told Interfax.

[b]As reported in the state corporation, the simulator should be universal for both the existing Soyuz spacecraft and the promising Eagle.]

The simulator of the manned spacecraft will be created on the basis of a virtual reality complex created by the industry IT integrator of Roscosmos "RK-tsifra". This was announced by the director of the Digital Development Department of the state corporation Konstantin Shadrin.

The Government of the Russian Federation notes the need to improve the effectiveness of the implementation of a number of state programs. "Pay attention to the low degree of effectiveness of the implementation of the state program of the Russian Federation "Space activities of Russia", - said in a statement posted on the website of the Cabinet of Ministers on Saturday.

Polish National Defense Minister Mariusz Blaszczak, in an interview with Polish Radio 24 on May 22, 2021, announced the upcoming conclusion of a contract for the purchase of four Turkish Bayraktar TB2 reconnaissance and strike unmanned aerial systems for the Polish armed forces, including 24 unmanned aerial vehicles themselves, as well as weapons for them.

Turkey has mastered the production of heavy drones. Yesterday, May 20, portal savunmasanayist.com he reported that the first serial Akıncı drone produced by Baykar Defense company successfully flew.

As reported by the magazine "Jane's Defense Weekly", speaking on May 19, 2021 at the virtual conference of industry in the interests of Special Operations Forces of the United States (Special Operations Forces Industry Conference - SOFIC-2021), the executive director of aircraft programs of the Command of Special Operations Forces of the United States (USSOCOM), Colonel Ken Kubler, said that the possibility of creating an amphibious version of the Lockheed Martin MC-130J Commando II (based on the C-130J Super Hercules), adapted for landing on water and taking off from water (MC-130 Amphibious Capability - MAC concept).

According to the Ministry of Defense of the Czech Republic, on the night of May 19, 2021, the first of the two Airbus C295MW military transport aircraft ordered for the Czech Air Force (tail number "0481", serial number 172) arrived at the Prague-Kbely airfield. The aircraft, built at the Airbus Defense and Space facility in Seville, Spain, was the first to be built on board the new C295MW modification, equipped with winglets at the wing tips.

On May 20, 2021, at Makurdi Air Base in Nigeria, an official ceremony was held for the entry into the Nigerian Air Force of three Chinese-Pakistani JF-17 Thunder Block II fighters assembled by the Pakistan Aeronautical Complex (RAS). The ceremony marking the 57th anniversary of the Nigerian Air Force was attended by Nigerian President Mohammadu Buhari.

In a statement to national media, recently appointed Colombian Finance Minister Jose Manuel Restrepo said that the country's government will definitely not allocate funds for the purchase of new fighter jets.

As the Croatian newspaper Jutarnji list reported on May 20, 2021, citing "well-informed sources", the Croatian government, on the recommendation of a meeting of the Croatian Defense Council held on the same day, decided to purchase 12 French Dassault Rafale fighters from the French Air Force, modified to the F3R standard, and to enter into pre-contract negotiations with the French side on this issue.

France has begun flight tests of the latest modification of the Rafale fighter. On May 22, the press service of the French Defense Ministry reported that the first stage of flight tests of the F4 modification aircraft was held at the Istres air base in the south of the country.

Russia plans to supply foreign customers with various helicopters worth more than $ 1 billion in 2021. This was reported to the agency "RIA Novosti" by the director of the FSMTC Dmitry Shugaev at the HeliRussia-2021 exhibition.

Within the framework of the international helicopter industry exhibition HeliRussia 2021, Russian Helicopters Holding (part of Rostec State Corporation) and KrasAvia Airlines signed an agreement of intent for the supply of 10 Mi-8AMT, Mi-8MTV-1 and Ka-62 helicopters.

At the next international helicopter industry exhibition HeliRussia 2021, which takes place from May 20 to 22, 2021 in Moscow, among other things, joint projects of the companies "Aviation Auxiliary Systems" ("ABC") and "Aeromax" on the development of unmanned aerial systems under the SmartHELI brand are presented.