In September 2017 the Russian Federal Communications Agency issued the postal stationery (envelope) devoted to the 160th anniversary of the birthday of Konstantin Tsiolkovsky. He was a Russian and Soviet rocket scientist and pioneer of the astronautic theory. He is considered to be one of the founding fathers of modern rocketry and astronautics. Total edition is 500 000 envelops. The size of the envelope is 110 mm х 220 mm. The special cancellations devoted to the event were conducted in Russian cities Kaluga, Kirov and Ryazan.
First the letter was posted from the town of Khimki to Moscow. Then the letter was delivered to the ISS by the Russian "Soyuz MS-06” spacecraft. To document the delivery, on board the station the letter was marked with all proper board seals including the Russian official “Russian Post. ISS. Russian Segment” round board post mark dated September 13, 2017, the day when the “Soyuz MS-06” spacecraft docked with the ISS.
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On August 3, 2018 at 22:17 UTC the "Dragon” capsule splashed down in the Pacific Ocean in a distance of about 760 kilometers southwest of Long Beach, California. The Dragon delivered to Earth about 1700 kilograms of cargo. It was the "SpaceX CRS-15” mission. CRS means Commercial Resupply Services. It was the 15th flight of Dragon to the ISS with docking.
On August 3, 2018 at 10:30 UTC the station's robotic arm removed the Dragon capsule from its berthing port on the station’s Harmony module. Using a command issued from the mission control center, the robot arm released the Dragon CRS-15 spacecraft at 16:38 UTC on August 3. It was the 15th flight of Dragon to the ISS with docking, including a demonstration flight in 2012.
On July 31, 2018 at 03:00 UTC the “Long March – 4B” (“Changzheng-4B”) rocket-carrier was launched from the Taiyuan Satellite Launch Center in north China's Shanxi Province. The rocket orbited the “Gaofeng-11”Earth-observing satellite.
On July 29, 2018 at 01:48 UTC the "Chang Zheng-3B” (Long March-3B) rocket-carrier was launched from the Xichang Satellite Launch Center in Xichang, southwest China's Sichuan Province. The rocket orbited two “Beidou” navigation satellites.
On July 25, 2018 at 11:39 UTC the "Falcon-9” rocket-carrier was launched from Vandenberg Air Force Base, California, USA. The launch was performed by SpaceX company. The rocket orbited 10 “Iridium NEXT” communications satellites.
On July 22, 2018 at 05:50 UTC the "Falcon 9” rocket-carrier was launched from SLC-40 of Cape Canaveral launch site of US Air Force, Florida. The launch was performed by the "SpaceX” private company supported by the 45th Space Wing of US Air Force. The rocket orbited the Canadian “Telstar-19 Vantage” telecommunications satellite.
On July 15, 2018 at 10:20 UTC the US "Cygnus” (CRS OA-9E “S.S. J.R. Thompson”) unmanned supply spacecraft was undocked from the Harmony module of the International Space Station. After that, the spacecraft, which had been attached to the space station since May 24, 2018, was released by German astronaut Alexander Gerst and US astronaut Serena Auñón-Chancellor aboard the station using the “Canadarm-2” orbiting complex's huge robotic arm at 12:37 UTC. It was the 9th successful flight of "Cygnus” to the ISS.