Russian officials are saying that a tiny leak at the International Space Station was likely caused by a human hand. Now, they're trying to figure out who did it, why they did it and whether it happened in space or on the ground.
The crew identified the source of the leak as a 2-millimeter hole in the upper section of a Soyuz MS-09 spacecraft, which is docked in the Russian section of the space station.
"We don't reject any theories," said Dmitry Rogozin, the head of Russia's state space agency Roscosmos, according to state news agency TASS. He added that they're aiming "to find out whether it was an accidental defect or a deliberate spoilage and where it was done ... we will find out, without fail."