Smoke alarms went off at the Russian segment of the International Space Station in the early hours of Thursday, and the crew reported noticing smoke and the smell of burnt plastic.
Russia’s space agency Roscosmos said the incident took place in the Russian-built Zvezda module and occurred as the station’s batteries were being recharged.
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According to Roscosmos, the crew activated air filters and returned to their “night rest” once the air quality was back to normal. The crew will proceed with a space walk Thursday as planned, the agency noted.
The space station is currently operated by NASA astronauts Mark Vande Hei, Shane Kimbrough and Megan McArthur; Oleg Novitsky and Pyotr Dubrov of Russia’s Roscosmos; Japan Aerospace Exploration Agency astronaut Akihiko Hoshide, and European Space Agency astronaut Thomas Pesquet.
Novitsky and Dubrov are scheduled to carry out a six-hour-long space walk on Thursday to continue integrating the Russian-built Nauka science lab that docked with the space station in July. Shortly after docking, the lab briefly knocked the orbital outpost out of position by accidentally firing its engines — an incident Russian space officials blamed on a software failure.
The Associated Press contributed to this article.