"According to the new schedule of the Soyuz-5 launches, which is being formed now, five launches of the new carrier rocket are planned to be held before 2025. The first launch is scheduled for mid-2022, the second launch is set for late 2022 . The launch of the unmanned version of the Federation spacecraft on the Soyuz-5 rocket is suggested to be held in 2023 after two test launches of the rocket are held," the source said.
It is still unclear which spacecraft the Soyuz-5 rocket will bring to space in 2022, according to the source.
In mid and late 2024, two more launches of Soyuz-5 rockets were slated to be held in order to bring an unmanned spacecraft and a crew to the ISS, the source added.
"Thus, the terms for the launch of the manned version of the Federation spacecraft, set for Roscosmos for 2024, remain," the source pointed out.
The Russian space agency has not immediately responded for comment.
The Russian spacecraft manufacturer Energiya has been working on the Federation spacecraft since 2009, aiming to substitute Soyuz rockets, which have been used to bring crews to the ISS for over 50 years.