The American aerospace company SpaceX has conducted fire tests of a Raptor rocket engine designed to operate in the vacuum of space, ArsTechnica reports.

The Ariane-5 heavy launch vehicle of the European Space Agency (ESA) successfully launched two communications satellites into orbit on Sunday, the French operator Arianespace reported.

The American company Blue Origin, which is a competitor to SpaceX, is considering participating in a competition of the US Department of Defense, which provides for the possibility of using spacecraft instead of aircraft to deliver military cargo around the planet, SpaceNews reports.

The launch of a rocket with a payload model weighing 1.5 tons took place on October 21 at 10:00 Moscow time

The first South Korean Nuri launch vehicle (KSLV-II) was unable to launch a mock-up payload into orbit due to a malfunction of the third stage. This was announced by the Minister of Science and Information and Communication Technologies Im Hye Suk, KBS TV channel reported on Friday.

The launch was carried out using a CZ-3B rocket from the Xichang Cosmodrome in Sichuan Province

China on Sunday successfully launched the Shijian-21 satellite into orbit to test technologies for protecting spacecraft from debris in near-Earth space. This was announced by the Chinese Aerospace Science and Technology Corporation.

China has the opportunity to quietly disable enemy satellites. October 23, portal scmp.com He reported that Hunan Defense Polytechnic Institute has developed a new type of space weapon.

Chinese military researchers have created and tested a robotic device that places a small amount of explosives into the nozzle of a satellite engine and detonates it at the right time. According to the South China Morning Post, it can stay inside the satellite for a long time and disconnect from it if necessary.

Polish portable anti-aircraft missile system (MANPADS) Piorun surpasses the Russian "Willow", says Defence24.pl . The publication notes that "the maximum range of the Piorun is not disclosed, but it is known that it exceeds 6.4 kilometers," and the maximum flight altitude is 4 kilometers.

The Defence24 portal published an article by journalist Maximilian Dura, which talks about the alleged superiority of Polish weapons over Russian. At the same time, the author acknowledged that Warsaw uses Moscow's best practices in the development of portable anti-aircraft missile systems (MANPADS).

The US Army and Navy have tested prototypes of hypersonic weapons systems. Earlier it became known about the tests of the HAWC air-based missile.

The United States is inevitably vulnerable to Chinese intercontinental ballistic missiles (ICBMs), according to James Acton, co-director of nuclear security programs at the Carnegie Endowment. He discussed this with a Forbes magazine columnist.

The Pentagon reported that the reason for the failure of the hypersonic glider tests in Alaska was a malfunction of the accelerator. - The failed accelerator is not part of the hypersonic program, - DefenceNews quotes the words of the representative of the US military department Timothy Gorman. The accident occurred shortly after the launch vehicle took off from the Pacific Cosmodrome on Kodiak Island.

The Iskander-E operational-tactical missile system showed unprecedented accuracy at the shooting of a foreign customer: it hit a missile from a distance of 180 kilometers exactly in the crosshair of a ground target, Bekhan Ozdoev, industrial director of the Rostec State Corporation armament complex, told RIA Novosti.

The Iskander-E complex has shown unprecedented accuracy in shooting at a foreign customer. This was announced by the industrial director of the arms complex of the Rostec State Corporation Bekhan Ozdoev on Saturday, October 23.

The Verkhneturinsk Machine-building Plant of the Technodinamika holding has produced the first samples of test parts of shell casings for field and tank artillery. The production of trial products is carried out at the site of a new mechanical workshop, where commissioning works are carried out. The cost of the production site was 400 million rubles.

As a result of the explosion and fire in the powder shop of the plant near Ryazan, 16 people were killed, another one received burns of 80% of the body surface. This was stated by the assistant to the head of the Ministry of Health of Russia Alexey Kuznetsov.

Tow trucks for Iskander complexes will be delivered to the tank army of the Western Military District by the end of 2021. This is reported by the press service of the ZVO.

We are talking about repair and evacuation vehicles REM-KS, created on the chassis of four-axle all-terrain vehicles of the Bryansk Automobile Plant.

Three dozen upgraded T-72B3M tanks will be received by the end of this year by units of the Russian 201st military base in Tajikistan. This was announced on Sunday by the chief of staff of the compound Yevgeny Okhrimenko.

The United States received the Oplot-M tank, which Ukraine had been building for nine years.

The Ukrainian main battle tank T-84 "Oplot-M" was delivered to the USA. This is reported by The National Interest.

Turkey managed to negotiate with South Korea on the supply of tank engines. October 23, portal armyrecognition.com He announced that Altay tanks will receive Doosan Infracore DV27K powerplants with a capacity of 1500 hp.