Roscosmos reports that engineers have successfully lowered the temperature on the Soyuz MS-22 crewed spacecraft, which experienced a malfunctioning cooling system. The government agency described the current state as stable, noting that the temperature is now trending downward and remaining within the established safety limits after corrective actions by the Mission Control Center near Moscow. This progress follows a period of concern when the cooling loop showed signs of strain, prompting a detailed assessment and rapid response from the Roscosmos team to protect both crew and equipment.
Officials emphasized that the ongoing temperature decline is the result of coordinated cooling system management and proactive thermal control measures. The mission specialists monitored heat loads, airflow within the radiator network, and pressure balances to ensure the spacecraft can operate under nominal conditions. The broader implication is that thermal stability is being preserved through a combination of diagnostic checks, calibrated thermal inputs, and controlled operational modes, which collectively reduce the risk of overheating aboard the spacecraft.
Earlier updates from Roscosmos indicated that the temperature regime aboard the Soyuz MS-22 had not exceeded permissible values, even during periods of elevated thermal stress. The agency highlighted the importance of maintaining strict thermal limits to safeguard structural integrity and life support reliability. In this context, engineers conducted a thorough review of the radiator performance and cooling circuit integrity, ensuring the cooling loop remains effective under varying external heat flux and internal power demands.
In December, spokespersons from Roskosmos explained that a micrometeoroid strike could potentially damage the radiator skin and cause a temporary depressurization of the cooling system. The incident underscored the risk of rapid temperature increases, with initial assessments indicating that temperatures could rise markedly if the cooling subsystem sustained more significant impairment. Continued monitoring and corrective actions have since stabilized the thermal environment, reinforcing confidence in the spacecraft’s ability to maintain safe operating temperatures and preserve crew safety under mission conditions due to the meticulous work of spaceflight controllers and engineering teams in Moscow and mission control facilities around the world.