In Space, U.S.-Russian Cooperation Finds a Way Forward
In April, Mr. Rogozin demanded that economic sanctions against Russia be lifted and said that he had submitted a proposal urging the Russian government to leave the space station.

This week, after the European Space Agency formally pulled out of a collaboration with Russia on sending a robotic rover to Mars, Mr. Rogozin said Russian astronauts on the space station would stop using a robotic arm built by the Europeans and lobbed disparaging words at Josef Aschbacher, the director general of the European Space agency, and Josep Borrell Fontelles, a top European Union foreign policy official.

“I, in turn, give a command to our crew on the ISS to stop working with the European ERA manipulator,” Mr. Rogozin wrote on his Telegram channel. “Let Aschbacher himself and his boss Borrell fly into space and do at least something useful in their lives.”

Dmitri S. Peskov, the Kremlin’s spokesman, insisted that the move had nothing to do with Mr. Rogozin’s performance and promised that the former director would soon be employed again.