On March 30, 2021, at 22:45 UTC, the “Long March –4C” (“Changzheng-4C”) rocket-carrier was launched from the Jiuquan Satellite Launch Center in Jiuquan, Gansu Province, the northwest of China. The rocket orbited the “Gaofen-12-02” Earth observation satellite.

On March 25, 2021 at 02:47 UTC the "Soyuz-2.1b” rocket-carrier was launched from Russian Vostochny Cosmodrome, in the Amur Oblast, in the Russian Far East. The rocket equipped with the “Fregat-M” upper stage orbited 36 satellites for OneWeb’s broadband internet network. London-based OneWeb’s broadband relay network is designed to beam high-speed internet signals around the world.

On March 22, 2021 at 22:30 UTC, the “Electron” rocket-carrier was launched from Rocket Lab Launch Complex 1, a commercial spaceport located close to Ahuriri Point at the southern tip of Mahia Peninsula, on the east coast of New Zealand's North Island. It is owned and operated by private spaceflight company Rocket Lab. The rocket orbited 6 small satellites.

On March 22, 2021 at 06:07 UTC the Russian "Soyuz-2.1a” rocket-carrier equipped with the "Fregat” booster (upper stage) was launched from Baykonur Cosmodrome. The biggest payload of the launch was the South Korean “CAS500-1” Earth observation satellite. Four commercial Earth-imaging satellites from the Japanese company Axelspace and dozens of smaller commercial and research missions were also orbited by the rocket.

On March 19, 2021 the "Soyuz MS-17” spacecraft was redocked from the Mini-Research Module 1 (MRM-1) ‘Rassvet” to the "Poisk” (MIM-2 or Mini-Research Module 1 /MRM-1/) module of the International Space Station. The operation was carried out manually by Soyuz commander, Russian cosmonaut Sergey Ryzhikov. During the redocking the crew also consisted of Russian cosmonaut Sergey Kud-Sverchkov and American astronaut Kathleen Rubins. The redocking mission lasted 34 minutes. The crew relocated the “Soyuz MS-17” spacecraft to clear the way for the next Soyuz mission to dock with the “Rassvet” module after launching April 9 from Baikonur Cosmodrome.

On March 14, 2021 at 10:01 UTC the " Falcon-9” rocket-carrier was launched from Kennedy Space Center (LC39A), Florida, USA. The launch was performed by the "SpaceX” private company supported by the 45th Space Wing of US Air Force. The rocket orbited 60 Starlink satellites.

On March 13, 2021 American astronauts Victor Glover and Michael Hopkins performed the spacewalk. The EVA lasted 6 hours and 47 minutes. It was the 4^th spacewalk for Victor Glover and the 5^th spacewalk for Michael Hopkins.