Russian cosmonauts have discovered something remarkable clinging to the outside of the International Space Station: living organisms.
The microscopic creatures appeared during a space walk intended to clean the vessel's surface, and were allegedly identified — incredibly — as a type of sea plankton. This is big: According to Sploid, Russian scientists are both "shocked by [the] discovery and can't really explain how [it] is possible."
"Results of the experiment are absolutely unique," Russian ISS Orbital Mission Chief Vladimir Solovyev told the ITAR-TASS News Agency. "This should be studied further."