Russian cosmonauts Oleg Kononenko and Nikolai Chub got an up-close view of a coolant leak flowing from an external radiator while conducting a spacewalk outside of the International Space Station.

Cosmonauts on ISS spacewalk encounter toxic coolant 'blob' while inspecting leaky radiator

Source: space
Source Link: https://www.space.com/russian-spacewalk-nauka-radiator-leak-october-2023