CNN's Astronauts relocated a spacecraft outside the International Space Station (was it inside before?) says:
Russian cosmonauts Sergey Ryzhikov and Sergey Kud-Sverchkov, along with NASA astronaut Kate Rubins, flew the Soyuz MS-17 capsule from its current port to another one on Friday.
The maneuver was streamed live on NASA's TV channel and website.
There are usually 6 crew members, and 2 Soyuz spacecraft on station. Each Soyuz carries 3 astronauts.
If there is an issue redocking during the move procedure, the backup plan is to return to earth. If they cannot redock and someone is left on the station, they would be stranded and cause all sorts of downstream issues.
and @DohnJoe's comment backs this up.
Question: How often are fewer than three astronauts present when moving a Soyuz spacecraft from one docking port to another? This has been done about fifteen times!
From the very cool video Space Station Crew Relocate Soyuz Spacecraft. You can see the Kurs antennas and the green space periscope!
- Soyuz has a Space Periscope?
- How many antennas does Kurs use in toto, and what are each of their functions?
- What is this tiny articulated dish antenna-like thing on Zvezda?
- Do the Soyuz spacecraft bringing astronauts and supplies to the ISS use Ukraine-built Kurs systems?
and for background:
- Why have astronauts had to take Soyuz capsules "out for a spin" on 15 separate occasions? (move from one Soyuz port to another)
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