November 5, 2024

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Astronauts on a spacewalk encounter a toxic coolant “bubble” while examining a leaking coolant

Astronauts on a spacewalk encounter a toxic coolant “bubble” while examining a leaking coolant

Two astronauts conducting a spacewalk outside the International Space Station (ISS) on Wednesday (October 25) got a close-up view of a coolant leak that was first observed flowing from an external radiator earlier this month.

Oleg Kononenko got so close to the growing “bubble” or “droplet” — as the collected ammonia was described — that one of his tethers became contaminated, necessitating it being bagged and left outside the space station when the spacewalk was over.