Micrometeorite possibly behind Russian space capsule leak

Written by Copernical Team Thursday, 15 December 2022 14:43

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Russian space capsule leak likely caused by micrometeorite

Credit: AP Photo/Dmitri Lovetsky, File" width="800" height="530"/>

NASA astronaut Frank Rubio, right, Roscosmos cosmonauts Sergey Prokopyev, center, and Dmitri Petelin, members of the main crew heading to the International Space Station (ISS), wave to their relatives and friends in front of a bus prior the launch of Soyuz-2.1 rocket at the Russian leased Baikonur cosmodrome, Kazakhstan, on Sept. 21, 2022. NASA and Russia's space agency canceled a spacewalk by the two Russian cosmonauts, Prokopyev and Petelin, just as they were preparing to exit the International Space Station late Wednesday, Dec. 14 because of an apparent coolant leak from an attached space capsule. Credit: AP Photo/Dmitri Lovetsky, File

A coolant leak from a Russian space capsule attached to the International Space Station was likely caused by a micrometeorite strike, a Russian space official said Thursday.

Russia's space corporation Roscosmos and NASA both have said that the incident hasn't posed any danger to the station's crew.

Sergei Krikalev, a veteran cosmonaut who serves as the director of crewed space flight programs at Roscosmos, said the coolant leak from the Soyuz MS-22 capsule could have been caused by a meteorite striking one of its radiators. Krikalev said in a statement that the malfunction could affect the capsule's coolant system performance and the temperature in the equipment section of the capsule but doesn't endanger the crew.

The coolant leak prompted a pair of Russian cosmonauts to abort a planned spacewalk earlier in the day.

Krikalev said Russian flight controllers were continuing to assess the situation and following temperature indicators on the Soyuz, but emphasized that "there have been no other changes in parameters on the Soyuz spacecraft and the station, so there is no threat for the crew."

Krikalev added, however, that the station's future operations will depend on the assessment of the capsule's condition. "Decisions about the future flight program will be made on the basis of that analysis," he said.

"NASA and Roscosmos will continue to work together to determine the next course of action following the ongoing analysis," NASA said. "The crew members aboard the space station are safe, and were not in any danger during the leak."

Just as Russian cosmonauts Sergey Prokopyev and Dmitri Petelin were about to venture outside the station on a planned spacewalk earlier Thursday, ground specialists saw a stream of fluid and particles on a live video feed from space, along with a pressure drop on instruments, emanating from the Soyuz capsule. Prokopyev, Petelin and NASA astronaut Frank Rubio used the capsule to arrive at the International Space Station in September, and it serves as a lifeboat for the crew.

Along with them, four other crew members are currently on the space outpost—NASA astronauts Nicole Mann and Josh Cassada, Japan Aerospace Exploration Agency's Koichi Wakata and Anna Kikina of Roscosmos.

Citation: Russian space capsule leak likely caused by micrometeorite (2022, December 15) retrieved 15 December 2022 from https://phys.org/news/2022-12-russian-space-capsule-leak-micrometeorite.html

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