ABC Newsのインスタグラム(abcnews) - 12月3日 01時26分

SPACEWALK: Two astronauts from the ESA and NASA conducted a spacewalk to install new pumps on a cosmic ray detector outside the ISS.

The two billion dollar spectrometer has been hunting for antimatter and dark matter for more than 8 years. https://abcn.ws/35TE3ck

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