Vol vers Mars rapide: une absurdité selon Rogozine

http://www.go-taikonauts.com/en/chinese-space-news/3492-prof-yung-kai-leung-of-polyu-shows-its-mars-camera

http://www.gctc.ru/main.php?id=5344

http://www.go-taikonauts.com/en/chinese-space-news/3491-cas-space-made-a-start-on-the-design-of-zhongke-2-solid-fuel-rocket

SpaceX CRS-22 ready to launch new solar arrays for space station

http://www.gctc.ru/main.php?id=5341

Sortie extra-véhiculaire achevée pour Novitsky et Doubrov

https://blogs.nasa.gov/spacestation/2021/06/02/cosmonauts-finish-spacewalk-to-ready-station-for-new-module/