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Things got dicey yesterday aboard the International Space Station (ISS). Late in the day, Russian cosmonauts Sergey Prokopyev and Dmitry Petelin were preparing for a spacewalk when exterior cameras showed a stream of white flakes pouring from the Soyuz spacecraft attached to the station. Simultaneously, telemetry indicated a drop in pressure in the Soyuz’s coolant tank, indicating that it was the source of the leak. Ground controllers ordered Prokopyev and Petelin, who were already suited up and preparing to exit the station, to scrub the spacewalk and stay indoors until the problem could be sorted out.
The development is a troubling one that could spell peril for the crew. The Soyuz that sprung the leak lifted off from the Baikonur Cosmodrome in Kazakhstan on Sept. 21, carrying Prokopyev, Petelin, and American astronaut Frank Rubio aloft. Spacecraft that bring crew members to the ISS remain docked to the station throughout the crew’s stay to serve both as their ride home and as a lifeboat in the event that an emergency requires them to evacuate on short notice. If the Soyuz is unsafe, the three crew members would have no immediate means of returning to Earth—and for now the outlook for the Soyuz is not good.
Rob Navias, NASA TV commentator, described the leak as “fairly significant,” adding, “No decisions have been made regarding the integrity of the Soyuz…or what the next course of action will be.” The cause of the leak, Navias said, is “unknown,” though pressure buildup within the coolant tank or even a hit from a piece of space debris could be to blame.
Prokopyev, Petelin, and Rubio are not the only crew members staffing the station. Also on board are NASA astronauts Nicole Mann and John Casada, Japanese astronaut Koichi Wakata, and Russian cosmonaut Anna Kikina. They arrived at the ISS aboard a SpaceX Crew Dragon spacecraft after their Oct. 5 launch. The Dragon remains docked to the station and is experiencing no problems, but on a return trip, it could accommodate only the four passengers it initially launched.
Just what the Russians will do if the Soyuz appears not to be flight worthy is unclear, but there is historical precedent for such a situation. In April 1979, a Soyuz spacecraft that was docked at the Soviet Salyut 6 space station developed a propulsion breakdown, and two months later, Russia launched an unpiloted replacement Soyuz that successfully docked and brought the crew home when their rotation was complete.
Given the long duration of the leak, NASA is also likely to have concerns about the impact of all that ammonia on space station surfaces and those of other docked vehicles.
Much of the ammonia would probably boil off the surface of the hardware over time, but it will certainly complicate operations
Crewmembers Are Trapped Aboard the International Space Station Until a Leak Is Fixed—Or Rescue Arrives
Why not just call it by its name?
Special Space Operation in the perfectly fine Dragon capsule
originally posted by: JAY1980
a reply to: putnam6
Your title is misleading. The headline is
Crewmembers Are Trapped Aboard the International Space Station Until a Leak Is Fixed—Or Rescue Arrives
Everyone is trapped not just the Russians seeing as the Russians are the only ones with a
Why not just call it by its name?
Special Space Operation in the perfectly fine Dragon capsule
This low key Russian bigotry is getting tiresome.
Why not just call it an "Orc Transport Vessel" and quit beating around the bush?
Just an opinion but the Russians should leave the other astronauts on the ISS and make their governments pay Musk to uber them back to earth with space-x. It was their faults to rely so heavily on Russia in the first place then treat them like ****.
Three Astronauts May Be Stranded on the ISS After Disturbing Soyuz Coolant Leak
Three Astronauts May Be Stranded on the ISS After Disturbing Soyuz Coolant Leak
A Russian spacewalk was called off on Wednesday after a Soyuz spacecraft attached to the International Space Station (ISS) started leaking coolant in low Earth orbit. For one NASA astronaut and two Russian cosmonauts on board, that could mean their ride back to Earth is suddenly gone.
edit on 15-12-2022 by putnam6 because: (no reason given)
originally posted by: JIMC5499
Like this is a major emergency. I'm betting that in a pinch they could have another Dragon capsule up there within a week.
originally posted by: imitator
a reply to: putnam6
The cameras showed a stream of white flakes pouring from the Soyuz spacecraft attached to the station, the cause of the leak is unknown.
Hmmm...
Solution: Flex TAPE!!!