Spacecraft suffered coolant leak in December, prompting launch of replacement capsule

The uncrewed Roscosmos Soyuz MS-22 spacecraft is set to undock from the International Space Station early Tuesday morning following a coolant leak last year, according to NASA.

NASA officials said that the spacecraft is expected to depart the ISS at 5:57 a.m., heading for an automated, parachute-assisted landing in Kazakhstan by around 7:45 a.m.

NASA astronaut Frank Rubio and Roscosmos cosmonauts Sergey Prokopyev and Dmitri Petelin launched aboard the Soyuz in September 2022, the agency stated.

However, a coolant leak sprung up on the Soyuz during an attempted spacewalk in December 2022, and NASA announced that a replacement Soyuz MS-23 was launched to the ISS in February 2023 to return the team to Earth later this year.

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A cause of the coolant leaks impacting the MS-22 spacecraft remains under investigation by Roscosmos engineers, NASA said.

News 6 will stream the undocking live at the top of this story when it happens.

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