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A spacewalk scheduled for two astronauts outside the International Space Station was canceled by NASA about an hour before it was to begin Thursday morning.
A pair of NASA astronauts are scheduled to do a 6.5 hour spacewalk on the morning of June 13 outside the International Space Station.
During the Rodent Research-1 (RR-1) mission flown to the ISS in 2014, videos that were taken to observe the mice revealed an unusual behavior that researchers are still working to understand. Young (16-week-old) but not old ...
