Head of Roscosmos Rogozin: the launch of the Proton-M rocket has been postponed until December 12 for revision 
carrier rocket “Proton-M” with telecommunication satellites “Express-AMU3” and “Express-AMU7” from 6 to 12 December. TASS was informed about this by the general director of the state corporation Dmitry Rogozin.
According to him, this is due to the need to modify the upper stage.
The previous launch of Proton-M took place in July. He became 11th in a row. From the Baikonur cosmodrome, the launch vehicle launched a 20-ton multifunctional laboratory module (MLM) “Science” until 2025. In the future, it is planned to replace it with a more environmentally friendly Angara missile. It uses environmentally friendly fuel components – oxygen and kerosene.