“After opening the Progress spacecraft’s hatch, the Roscosmos cosmonauts noticed an unexpected odor and observed small droplets, prompting the crew to close the Poisk hatch to the rest of the Russian segment,” the agency said in a social media pos

A Russian segment of the International Space Station was locked down this weekend after cosmonauts found an “unusual odor” emanating from a visiting cargo capsule, NASA said.

A mysterious odor and "small droplets" greeted cosmonauts on the ISS when they opened the hatch to a newly arrived cargo spacecraft. NASA thinks it knows what happened.

A Russian spacecraft docked to the International Space Station (ISS) didn’t just bring supplies to the ISS—it also brought a foul odor. The unpleasant aroma was strong enough to prompt astronauts to close the hatch connecting it to the rest of the space station and initiate anti-contamination procedures.

There was brief cause for concern at the ISS just recently when crew there reported an unexpected odor coming from Russia's recently docked Progress spacecraft.

"After opening the Progress spacecraft's hatch, the Roscosmos cosmonauts noticed an unexpected odor and observed small droplets, prompting the crew to close the Poisk hatch to the rest of the Russian segment," NASA said in a statement on Sunday.

A Russian Progress spacecraft delivering nearly three tons of supplies to the International Space Station also brought an unwanted smell when cosmonauts opened the hatch.

As if they need any more problems, the astronauts on board the International Space Station now have a new noxious odor to deal with. In a statement posted on X-formerly-Twitter, NASA's ISS account noted that when the Russians' Poisk module docked with the rest of the space station,